{"id":36,"date":"2015-11-10T13:35:46","date_gmt":"2015-11-10T05:35:46","guid":{"rendered":"http:\/\/www.kejidana.com\/?p=36"},"modified":"2015-11-10T13:35:46","modified_gmt":"2015-11-10T05:35:46","slug":"termios-%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.kejidana.com\/?p=36","title":{"rendered":"termios \u8be6\u89e3"},"content":{"rendered":"

\u4e00\u3001\u6570\u636e\u6210\u5458<\/strong><\/p>\n

termios \u51fd\u6570\u65cf\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5e38\u89c4\u7684\u7ec8\u7aef\u63a5\u53e3\uff0c\u7528\u4e8e\u63a7\u5236\u975e\u540c\u6b65\u901a\u4fe1\u7aef\u53e3\u3002 \u8fd9\u4e2a\u7ed3\u6784\u5305\u542b\u4e86\u81f3\u5c11\u4e0b\u5217\u6210\u5458\uff1a<\/p>\n

tcflag_t c_iflag; \u00a0 \u00a0 \u00a0\/* \u8f93\u5165\u6a21\u5f0f *\/
\ntcflag_t c_oflag; \u00a0 \u00a0 \u00a0\/* \u8f93\u51fa\u6a21\u5f0f *\/
\ntcflag_t c_cflag; \u00a0 \u00a0 \u00a0\/* \u63a7\u5236\u6a21\u5f0f *\/
\ntcflag_t c_lflag; \u00a0 \u00a0 \u00a0\/* \u672c\u5730\u6a21\u5f0f *\/
\ncc_t c_cc[NCCS]; \u00a0 \u00a0 \u00a0 \/* \u63a7\u5236\u5b57\u7b26 *\/<\/p>\n

\n
<\/div>\n
    \n
  1. struct<\/span>\u00a0termios<\/li>\n
  2. {<\/li>\n
  3. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0short<\/span>\u00a0c_iflag;\u00a0\/*\u00a0\u8f93\u5165\u6a21\u5f0f\u6807\u5fd7*\/<\/span><\/li>\n
  4. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0short<\/span>\u00a0c_oflag;\u00a0\/*\u00a0\u8f93\u51fa\u6a21\u5f0f\u6807\u5fd7*\/<\/span><\/li>\n
  5. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0short<\/span>\u00a0c_cflag;\u00a0\/*\u00a0\u63a7\u5236\u6a21\u5f0f\u6807\u5fd7*\/<\/span><\/li>\n
  6. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0short<\/span>\u00a0c_lflag;\u00a0\/*\u533a\u57df\u6a21\u5f0f\u6807\u5fd7\u6216\u672c\u5730\u6a21\u5f0f\u6807\u5fd7\u6216\u5c40\u90e8\u6a21\u5f0f*\/<\/span><\/li>\n
  7. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0char<\/span>\u00a0c_line;\u00a0\/*\u884c\u63a7\u5236line\u00a0discipline\u00a0*\/<\/span><\/li>\n
  8. \u00a0\u00a0\u00a0\u00a0unsigned\u00a0char<\/span>\u00a0c_cc[NCC];\u00a0\/*\u00a0\u63a7\u5236\u5b57\u7b26\u7279\u6027*\/<\/span><\/li>\n
  9. };<\/li>\n<\/ol>\n<\/div>\n

    \u4e8c\u3001\u4f5c\u7528<\/strong>
    \n\u8fd9\u4e2a\u53d8\u91cf\u88ab\u7528\u6765\u63d0\u4f9b\u4e00\u4e2a\u5065\u5168\u7684\u7ebf\u8def\u8bbe\u7f6e\u96c6 \u5408, \u5982\u679c\u8fd9\u4e2a\u7aef\u53e3\u5728\u88ab\u7528\u6237\u521d\u59cb\u5316\u524d\u4f7f\u7528. \u9a71\u52a8\u521d\u59cb\u5316\u8fd9\u4e2a\u53d8\u91cf\u4f7f\u7528\u4e00\u4e2a\u6807\u51c6\u7684\u6570\u503c\u96c6, \u5b83\u62f7\u8d1d\u81ea tty_std_termios\u53d8\u91cf. tty_std_termos \u5728 tty\u00a0\u6838\u5fc3\u88ab\u5b9a\u4e49\u4e3a:<\/p>\n

    \n
    <\/div>\n
      \n
    1. struct<\/span>\u00a0termios\u00a0tty_std_termios\u00a0=\u00a0{<\/li>\n
    2. \u00a0\u00a0\u00a0\u00a0.c_iflag\u00a0=\u00a0ICRNL\u00a0|\u00a0IXON,<\/li>\n
    3. \u00a0\u00a0\u00a0\u00a0.c_oflag\u00a0=\u00a0OPOST\u00a0|\u00a0ONLCR,<\/li>\n
    4. \u00a0\u00a0\u00a0\u00a0.c_cflag\u00a0=\u00a0B38400\u00a0|\u00a0CS8\u00a0|\u00a0CREAD\u00a0|\u00a0HUPCL,<\/li>\n
    5. \u00a0\u00a0\u00a0\u00a0.c_lflag\u00a0=\u00a0ISIG\u00a0|\u00a0ICANON\u00a0|\u00a0ECHO\u00a0|\u00a0ECHOE\u00a0|\u00a0ECHOK\u00a0|\u00a0ECHOCTL\u00a0|\u00a0ECHOKE\u00a0|\u00a0IEXTEN,<\/li>\n
    6. \u00a0\u00a0\u00a0\u00a0.c_cc\u00a0=\u00a0INIT_C_CC<\/li>\n
    7. };<\/li>\n<\/ol>\n<\/div>\n

      \u8fd9\u4e2a struct termios \u7ed3\u6784\u7528\u6765\u6301\u6709\u6240\u6709\u7684\u5f53\u524d\u7ebf\u8def\u8bbe\u7f6e, \u7ed9\u8fd9\u4e2a tty \u8bbe\u5907\u7684\u4e00\u4e2a\u7279\u5b9a\u7aef\u53e3. \u8fd9\u4e9b\u7ebf\u8def\u8bbe\u7f6e\u63a7\u5236\u5f53\u524d\u6ce2\u7279\u7387, \u6570\u636e\u5927\u5c0f, \u6570\u636e\u6d41\u63a7\u8bbe\u7f6e, \u4ee5\u53ca\u8bb8\u591a\u5176\u4ed6\u503c.<\/p>\n

      \u4e09\u3001\u6210\u5458\u7684\u503c<\/strong>
      \n\uff08\u4e00\uff09c_iflag \u6807\u5fd7\u5e38\u91cf\uff1aInput mode ( \u8f93\u5165\u6a21\u5f0f)<\/strong>
      \ninput mode\u53ef\u4ee5\u5728\u8f93\u5165\u503c\u4f20\u7ed9\u7a0b\u5e8f\u4e4b\u524d\u63a7\u5236\u5176\u5904\u7406\u7684\u65b9\u5f0f\u3002\u5176\u4e2d\u8f93\u5165\u503c\u53ef\u80fd\u662f\u7531\u5e8f\u5217\u57e0\u6216\u952e\u76d8\u7684\u7ec8\u7aef\u9a71\u52a8\u7a0b\u5e8f\u6240\u63a5\u6536\u5230\u7684\u5b57\u5143\u3002
      \n\u6211\u4eec\u53ef\u4ee5\u5229\u7528termios\u7ed3\u6784\u7684c_iflag\u7684\u6807\u5fd7\u6765\u52a0\u4ee5\u63a7\u5236\uff0c\u5176\u5b9a\u4e49\u7684\u65b9\u5f0f\u7686\u4ee5OR\u6765\u52a0\u4ee5\u7ec4\u5408\u3002
      \n* IGNBRK \uff1a\u5ffd\u7565\u8f93\u5165\u4e2d\u7684 BREAK \u72b6\u6001\u3002 \uff08\u5ffd\u7565\u547d\u4ee4\u884c\u4e2d\u7684\u4e2d\u65ad\uff09
      \n* BRKINT \uff1a\uff08\u547d\u4ee4\u884c\u51fa \u73b0\u4e2d\u65ad\u65f6\uff0c\u53ef\u4ea7\u751f\u4e00\u63d2\u65ad\uff09\u5982\u679c\u8bbe\u7f6e\u4e86GNBRK\uff0c\u5c06\u5ffd\u7565 BREAK\u3002\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e\uff0c\u4f46\u662f\u8bbe\u7f6e\u4e86 BRKINT\uff0c\u90a3\u4e48 BREAK \u5c06\u4f7f\u5f97\u8f93\u5165\u548c\u8f93\u51fa\u961f\u5217\u88ab\u5237\u65b0\uff0c\u5982\u679c\u7ec8\u7aef\u662f\u4e00\u4e2a\u524d\u53f0\u8fdb\u7a0b\u7ec4\u7684\u63a7\u5236\u7ec8\u7aef\uff0c\u8fd9\u4e2a\u8fdb\u7a0b\u7ec4\u4e2d\u6240\u6709\u8fdb\u7a0b\u5c06\u6536\u5230 SIGINT\u4fe1\u53f7\u3002\u5982\u679c\u65e2\u672a\u8bbe\u7f6eIGNBRK\u4e5f\u672a\u8bbe\u7f6eBRKINT\uff0cBREAK \u5c06\u89c6\u4e3a\u4e0eNUL\u5b57\u7b26\u540c\u4e49\uff0c\u9664\u975e\u8bbe\u7f6e\u4e86PARMRK\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5b83\u88ab\u89c6\u4e3a\u5e8f\u5217377 &#0; &#0;\u3002
      \n* IGNPAR \uff1a\u5ffd\u7565\u6862\u9519\u8bef\u548c\u5947\u5076\u6821\u9a8c\u9519\u3002
      \n* PARMRK \uff1a\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e IGNPAR\uff0c\u5728\u6709\u5947\u5076\u6821\u9a8c\u9519\u6216\u6862\u9519\u8bef\u7684\u5b57\u7b26\u524d\u63d2\u5165377 &#0;\u3002\u5982\u679c\u65e2\u6ca1\u6709\u8bbe\u7f6e IGNPAR \u4e5f\u6ca1\u6709\u8bbe\u7f6ePARMRK\uff0c\u5c06\u6709\u5947\u5076\u6821\u9a8c\u9519\u6216\u6862\u9519\u8bef\u7684\u5b57\u7b26\u89c6\u4e3a &#0;\u3002
      \n* INPCK \uff1a\u542f\u7528\u8f93\u5165\u5947\u5076\u68c0\u6d4b\u3002
      \n* ISTRIP \uff1a\u53bb\u6389\u7b2c\u516b\u4f4d\u3002
      \n* INLCR :\u5c06\u8f93\u5165\u4e2d\u7684 NL \u7ffb\u8bd1\u4e3a CR\u3002\uff08\u5c06\u6536\u5230 \u7684\u6362\u884c\u7b26\u53f7\u8f6c\u6362\u4e3aReturn\uff09
      \n* IGNCR :\u5ffd\u7565\u8f93\u5165\u4e2d\u7684\u56de\u8f66\u3002
      \n* ICRNL :\u5c06\u8f93\u5165\u4e2d\u7684\u56de\u8f66\u7ffb\u8bd1\u4e3a\u65b0\u884c (\u9664\u975e\u8bbe\u7f6e\u4e86 IGNCR)(\u5426\u5219\u5f53\u8f93\u5165\u4fe1\u53f7\u6709 CR \u65f6\u4e0d\u4f1a\u7ec8\u6b62\u8f93\u5165)\u3002
      \n* IUCLC :(\u4e0d\u5c5e\u4e8e POSIX) \u5c06\u8f93\u5165\u4e2d\u7684\u5927\u5199\u5b57\u6bcd\u6620\u5c04\u4e3a\u5c0f\u5199\u5b57\u6bcd\u3002
      \n* IXON :\u542f\u7528\u8f93\u51fa\u7684 XON\/XOFF \u6d41\u63a7\u5236\u3002
      \n* IXANY :(\u4e0d\u5c5e\u4e8e POSIX.1\uff1bXSI) \u5141\u8bb8\u4efb\u4f55\u5b57\u7b26\u6765\u91cd\u65b0\u5f00\u59cb\u8f93\u51fa\u3002(?)
      \n* IXOFF :\u542f\u7528\u8f93\u5165\u7684 XON\/XOFF \u6d41\u63a7\u5236\u3002<\/p>\n

      * IMAXBEL:(\u4e0d\u5c5e\u4e8e POSIX) \u5f53\u8f93\u5165\u961f\u5217\u6ee1\u65f6\u54cd\u96f6\u3002Linux \u6ca1\u6709\u5b9e\u73b0\u8fd9\u4e00\u4f4d\uff0c\u603b\u662f\u5c06\u5b83\u89c6\u4e3a\u5df2\u8bbe\u7f6e\u3002<\/p>\n

      \u00a0 \uff08\u4e8c\uff09 c_oflag \u6807\u5fd7\u5e38\u91cf\uff1aOutput mode ( \u8f93 \u51fa\u6a21\u5f0f)<\/strong>
      \nOutput mode\u4e3b\u8981\u8d1f\u8d23\u63a7\u5236\u8f93\u51fa\u5b57\u5143\u7684\u5904\u7406\u65b9\u5f0f\u3002\u8f93\u51fa\u5b57\u5143\u5728\u4f20\u9001\u5230\u5e8f\u5217\u57e0\u6216\u663e\u793a\u5668\u4e4b\u524d\u662f\u5982\u4f55\u88ab\u7a0b\u5e8f\u6765\u5904\u7406\u3002
      \n\u8f93\u51fa\u6a21\u5f0f\u662f\u5229\u7528termios\u7ed3\u6784\u7684c_oflag\u7684\u6807\u5fd7\u6765\u52a0\u4ee5\u63a7\u5236\uff0c\u5176\u5b9a\u4e49\u7684\u65b9\u5f0f\u7686\u4ee5OR\u6765\u52a0\u4ee5\u7ec4\u5408\u3002
      \n* OPOST \uff1a\u542f\u7528\u5177\u4f53\u5b9e\u73b0\u81ea\u884c\u5b9a\u4e49\u7684\u8f93\u51fa\u5904\u7406\u3002
      \n* OLCUC \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u5c06\u8f93\u51fa\u4e2d\u7684\u5c0f\u5199\u5b57\u6bcd\u6620\u5c04\u4e3a\u5927\u5199\u5b57\u6bcd\u3002
      \n* ONLCR \uff1a(XSI) \u5c06\u8f93\u51fa\u4e2d\u7684\u65b0\u884c\u7b26\u6620\u5c04\u4e3a\u56de\u8f66-\u6362\u884c\u3002
      \n* OCRNL \uff1a\u5c06\u8f93\u51fa\u4e2d\u7684\u56de\u8f66\u6620\u5c04\u4e3a\u65b0\u884c\u7b26
      \n* ONOCR \uff1a\u4e0d\u5728\u7b2c 0 \u5217\u8f93\u51fa\u56de\u8f66\u3002
      \n* ONLRET \uff1a\u4e0d\u8f93\u51fa\u56de\u8f66\u3002
      \n* OFILL \uff1a\u53d1\u9001\u586b\u5145\u5b57\u7b26\u4f5c\u4e3a\u5ef6\u65f6\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u5b9a\u65f6\u6765\u5ef6\u65f6\u3002
      \n* OFDEL \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u586b\u5145\u5b57\u7b26\u662f ASCII DEL (0177)\u3002\u5982\u679c\u4e0d\u8bbe\u7f6e\uff0c\u586b\u5145\u5b57\u7b26\u5219\u662f ASCII NUL\u3002
      \n* NLDLY \uff1a\u65b0\u884c\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a NL0 \u548c NL1\u3002
      \n* CRDLY \uff1a\u56de\u8f66\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a CR0, CR1, CR2, \u6216 CR3\u3002
      \n* TABDLY \uff1a\u6c34\u5e73\u8df3\u683c\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a TAB0, TAB1, TAB2, TAB3(\u6216 XTABS)\u3002\u53d6\u503c\u4e3a TAB3\uff0c\u5373 XTABS\uff0c\u5c06\u6269\u5c55\u8df3\u683c\u4e3a\u7a7a\u683c (\u6bcf\u4e2a\u8df3\u683c\u7b26\u586b\u5145 8 \u4e2a\u7a7a\u683c)\u3002(?)
      \n* BSDLY \uff1a\u56de\u9000\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a BS0 \u6216 BS1\u3002(\u4ece\u6765\u6ca1\u6709\u88ab\u5b9e\u73b0\u8fc7)
      \n* VTDLY \uff1a\u7ad6\u76f4\u8df3\u683c\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a VT0 \u6216 VT1\u3002<\/p>\n

      * FFDLY \uff1a\u8fdb\u8868\u5ef6\u65f6\u63a9\u7801\u3002\u53d6\u503c\u4e3a FF0 \u6216 FF1\u3002<\/p>\n

      \u00a0 \uff08\u4e09\uff09 c_cflag \u6807\u5fd7\u5e38\u91cf\uff1aControl mode ( \u63a7\u5236\u6a21\u5f0f)<\/strong>
      \nControl mode\u4e3b\u8981\u7528\u4e8e\u63a7\u5236\u7ec8\u7aef\u8bbe\u5907\u7684\u786c\u4ef6\u8bbe\u7f6e\u3002\u5229\u7528termios\u7ed3\u6784\u7684c_cflag\u7684\u6807\u5fd7\u6765\u52a0\u4ee5\u63a7\u5236\u3002\u63a7\u5236\u6a21\u5f0f\u7528\u5728\u5e8f\u5217\u7ebf\u8fde\u63a5\u5230\u6570\u636e\u8bbe\u5907\uff0c\u4e5f\u53ef\u4ee5\u7528\u5728\u4e0e\u7ec8 \u7aef\u8bbe\u5907\u7684\u4ea4\u8c08\u3002
      \n\u4e00\u822c\u6765\u8bf4\uff0c\u6539\u53d8\u7ec8\u7aef\u8bbe\u5907\u7684\u7ec4 \u6001\u8981\u6bd4\u4f7f\u7528termios\u7684\u63a7\u5236\u6a21\u5f0f\u6765\u6539\u53d8\u884c(lines)\u7684\u884c\u4e3a\u6765\u5f97\u5bb9\u6613\u3002
      \n* CBAUD \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u6ce2\u7279\u7387\u63a9\u7801 (4+1 \u4f4d)\u3002
      \n* CBAUDEX \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u6269\u5c55\u7684\u6ce2\u7279\u7387\u63a9\u7801 (1 \u4f4d)\uff0c\u5305\u542b\u5728CBAUD \u4e2d\u3002
      \n* (POSIX \u89c4\u5b9a\u6ce2\u7279\u7387\u5b58\u50a8\u5728 termios \u7ed3\u6784\u4e2d\uff0c\u5e76\u672a\u7cbe\u786e\u6307\u5b9a\u5b83\u7684\u4f4d\u7f6e\uff0c\u800c\u662f\u63d0\u4f9b\u4e86\u51fd\u6570 cfgetispeed() \u548c cfsetispeed() \u6765\u5b58\u53d6\u5b83\u3002\u4e00\u4e9b\u7cfb\u7edf\u4f7f\u7528 c_cflag \u4e2d CBAUD \u9009\u62e9\u7684\u4f4d\uff0c\u5176\u4ed6\u7cfb\u7edf\u4f7f\u7528\u5355\u72ec\u7684\u53d8\u91cf\uff0c\u4f8b\u5982 sg_ispeed \u548c sg_ospeed \u3002)
      \n* CSIZE\uff1a\u5b57\u7b26\u957f\u5ea6\u63a9\u7801\uff08\u4f20\u9001\u6216\u63a5\u6536\u5b57\u5143\u65f6\u7528\u7684\u4f4d\u6570\uff09\u3002 \u53d6\u503c\u4e3aCS5\uff08\u4f20\u9001\u6216\u63a5\u6536\u5b57\u5143\u65f6\u75285bits\uff09, CS6, CS7, \u6216 CS8\u3002
      \n* CSTOPB \uff1a\u8bbe\u7f6e\u4e24\u4e2a\u505c\u6b62\u4f4d\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u3002
      \n* CREAD \uff1a\u6253\u5f00\u63a5\u53d7\u8005\u3002
      \n* PARENB \uff1a\u5141\u8bb8\u8f93\u51fa\u4ea7\u751f\u5947\u5076\u4fe1\u606f\u4ee5\u53ca\u8f93\u5165\u7684\u5947\u5076\u6821\u9a8c\uff08\u542f\u7528\u540c\u4f4d\u4ea7\u751f\u4e0e\u4fa6\u6d4b\uff09\u3002
      \n* PARODD \uff1a\u8f93\u5165\u548c\u8f93\u51fa\u662f\u5947\u6821\u9a8c\uff08\u4f7f\u7528\u5947\u540c\u4f4d\u800c\u975e\u5076\u540c\u4f4d\uff09\u3002
      \n* HUPCL \uff1a\u5728\u6700\u540e\u4e00\u4e2a\u8fdb\u7a0b\u5173\u95ed\u8bbe\u5907\u540e\uff0c\u964d\u4f4e modem \u63a7\u5236\u7ebf (\u6302\u65ad)\u3002(?)
      \n* CLOCAL \uff1a\u5ffd\u7565 modem \u63a7\u5236\u7ebf\u3002
      \n* LOBLK :(\u4e0d\u5c5e\u4e8e POSIX) \u4ece\u975e\u5f53\u524d shell \u5c42\u963b\u585e\u8f93\u51fa(\u7528\u4e8eshl )\u3002(?)
      \n* CIBAUD :(\u4e0d\u5c5e\u4e8e POSIX) \u8f93\u5165\u901f\u5ea6\u7684\u63a9\u7801\u3002CIBAUD \u5404\u4f4d\u7684\u503c\u4e0eCBAUD \u5404\u4f4d\u76f8\u540c\uff0c\u5de6\u79fb\u4e86 IBSHIFT \u4f4d\u3002
      \n* CRTSCTS :(\u4e0d\u5c5e\u4e8e POSIX) \u542f\u7528 RTS\/CTS (\u786c\u4ef6) \u6d41\u63a7\u5236\u3002<\/p>\n

      \u00a0 \uff08\u56db\uff09 c_lflag \u6807\u5fd7\u5e38\u91cf\uff1aLocal mode ( \u5c40\u90e8\u6a21\u5f0f)<\/strong>
      \nLocal mode\u4e3b\u8981\u7528\u6765\u63a7\u5236\u7ec8\u7aef\u8bbe\u5907\u4e0d\u540c\u7684\u7279\u8272\u3002\u5229\u7528termios\u7ed3\u6784\u91cc\u7684c_lflag\u7684\u6807\u5fd7\u6765\u8bbe\u5b9a\u5c40\u90e8\u6a21\u5f0f\u3002\u5728\u5de8\u96c6\u4e2d\u6709\u4e24\u4e2a\u6bd4\u8f83\u91cd\u8981\u7684\u6807\u5fd7\uff1a
      \n*ECHO\uff1a\u5b83\u53ef\u4ee5\u8ba9\u4f60\u963b\u6b62\u952e\u5165\u5b57\u5143\u7684\u56de\u5e94\u3002
      \n*ICANON(\u6b63\u89c4\u6a21\u5f0f)\u6807\u5fd7\uff0c\u5b83\u53ef\u4ee5\u5bf9\u6240\u63a5\u6536\u7684\u5b57\u5143\u5728\u4e24\u79cd\u4e0d\u540c\u7684\u7ec8\u7aef\u8bbe\u5907\u6a21\u5f0f\u4e4b\u95f4\u6765\u56de\u5207 \u6362\u3002
      \n* ISIG\uff1a\u5f53\u63a5\u53d7\u5230\u5b57\u7b26 INTR, QUIT, SUSP, \u6216 DSUSP \u65f6\uff0c\u4ea7\u751f\u76f8\u5e94\u7684\u4fe1\u53f7\u3002
      \n* ICANON\uff1a\u542f\u7528\u6807\u51c6\u6a21\u5f0f (canonical mode)\u3002\u5141\u8bb8\u4f7f\u7528\u7279\u6b8a\u5b57\u7b26EOF, EOL, EOL2, ERASE, KILL, LNEXT, REPRINT, STATUS, \u548cWERASE\uff0c\u4ee5\u53ca\u6309\u884c\u7684\u7f13\u51b2\u3002
      \n* XCASE:(\u4e0d\u5c5e\u4e8e POSIX; Linux \u4e0b\u4e0d\u88ab\u652f\u6301) \u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86ICANON\uff0c\u7ec8\u7aef\u53ea\u6709\u5927\u5199\u3002\u8f93\u5165\u88ab\u8f6c\u6362\u4e3a\u5c0f\u5199\uff0c\u9664\u4e86\u6709\u524d\u7f00\u7684\u5b57\u7b26\u3002\u8f93\u51fa\u65f6\uff0c\u5927\u5199\u5b57\u7b26\u88ab\u524d\u7f00\uff08\u67d0\u4e9b\u7cfb\u7edf\u6307\u5b9a\u7684\u7279\u5b9a\u5b57\u7b26\uff09 \uff0c\u5c0f\u5199\u5b57\u7b26\u88ab\u8f6c\u6362\u6210\u5927\u5199\u3002
      \n* ECHO \uff1a\u56de\u663e\u8f93\u5165\u5b57\u7b26\u3002
      \n* ECHOE \uff1a\u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ICANON\uff0c\u5b57\u7b26 ERASE \u64e6\u9664\u524d\u4e00\u4e2a\u8f93\u5165\u5b57\u7b26\uff0cWERASE \u64e6\u9664\u524d\u4e00\u4e2a\u8bcd\u3002
      \n* ECHOK \uff1a\u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ICANON\uff0c\u5b57\u7b26 KILL \u5220\u9664\u5f53\u524d\u884c\u3002
      \n* ECHONL \uff1a\u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ICANON\uff0c\u56de\u663e\u5b57\u7b26 NL\uff0c\u5373\u4f7f\u6ca1\u6709\u8bbe\u7f6e ECHO\u3002
      \n* ECHOCTL \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ECHO\uff0c\u9664\u4e86 TAB,NL, START, \u548c STOP \u4e4b\u5916\u7684 ASCII \u63a7\u5236\u4fe1\u53f7\u88ab\u56de\u663e\u4e3a ^X, \u8fd9\u91cc X \u662f\u6bd4\u63a7\u5236\u4fe1\u53f7\u5927 0x40 \u7684 ASCII \u7801\u3002\u4f8b\u5982\uff0c\u5b57\u7b260x08(BS) \u88ab\u56de\u663e\u4e3a ^H\u3002
      \n* ECHOPRT \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ICANON \u548cIECHO\uff0c\u5b57\u7b26\u5728\u5220\u9664\u7684\u540c\u65f6\u88ab\u6253\u5370\u3002
      \n* ECHOKE \uff1a(\u4e0d\u5c5e\u4e8e POSIX) \u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86 ICANON\uff0c\u56de\u663e KILL\u65f6\u5c06\u5220\u9664\u4e00\u884c\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5982\u540c\u6307\u5b9a\u4e86 ECHOE \u548c ECHOPRT \u4e00\u6837\u3002
      \n* DEFECHO :(\u4e0d\u5c5e\u4e8e POSIX) \u53ea\u5728\u4e00\u4e2a\u8fdb\u7a0b\u8bfb\u7684\u65f6\u5019\u56de\u663e\u3002
      \n* FLUSHO :(\u4e0d\u5c5e\u4e8e POSIX; Linux \u4e0b\u4e0d\u88ab\u652f\u6301) \u8f93\u51fa\u88ab\u5237\u65b0\u3002\u8fd9\u4e2a\u6807\u5fd7\u53ef\u4ee5\u901a\u8fc7\u952e\u5165\u5b57\u7b26 DISCARD \u6765\u5f00\u5173\u3002
      \n* NOFLSH :\u7981\u6b62\u5728\u4ea7\u751f SIGINT, SIGQUIT \u548c SIGSUSP \u4fe1\u53f7\u65f6\u5237\u65b0\u8f93\u5165\u548c\u8f93\u51fa\u961f\u5217\uff0c\u5373\u5173\u95edqueue\u4e2d\u7684flush\u3002
      \n* TOSTOP :\u5411\u8bd5\u56fe\u5199\u63a7\u5236\u7ec8\u7aef\u7684\u540e\u53f0\u8fdb\u7a0b\u7ec4\u53d1\u9001 SIGTTOU \u4fe1\u53f7\uff08\u4f20\u9001\u6b32\u5199\u5165\u7684\u4fe1\u606f\u5230\u540e\u53f0 \u5904\u7406\uff09\u3002
      \n* PENDIN :(\u4e0d\u5c5e\u4e8e POSIX; Linux \u4e0b\u4e0d\u88ab\u652f\u6301) \u5728\u8bfb\u5165\u4e0b\u4e00\u4e2a\u5b57\u7b26\u65f6\uff0c\u8f93\u5165\u961f\u5217\u4e2d\u6240\u6709\u5b57\u7b26\u88ab\u91cd\u65b0\u8f93\u51fa\u3002(bash \u7528\u5b83\u6765\u5904\u7406typeahead)
      \n* IEXTEN :\u542f\u7528\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u8f93\u5165\u5904\u7406\u3002\u8fd9\u4e2a\u6807\u5fd7\u5fc5\u987b\u4e0e ICANON\u540c\u65f6\u4f7f\u7528\uff0c\u624d\u80fd\u89e3\u91ca\u7279\u6b8a\u5b57\u7b26 EOL2\uff0cLNEXT\uff0cREPRINT \u548cWERASE\uff0cIUCLC \u6807\u5fd7\u624d\u6709\u6548\u3002
      \n\u00a0 \uff08\u4e94\uff09 c_cc \u6570\u7ec4\uff1a\u7279\u6b8a\u63a7\u5236\u5b57\u5143\u53ef\u63d0\u4f9b\u4f7f\u7528\u8005\u8bbe\u5b9a\u4e00\u4e9b\u7279\u6b8a\u7684\u529f\u80fd\uff0c\u5982Ctrl+C\u7684\u5b57\u5143\u7ec4\u5408\u3002<\/strong><\/p>\n

      \u7279\u6b8a\u63a7\u5236\u5b57\u5143\u4e3b\u8981\u662f\u5229\u7528termios\u7ed3\u6784\u91ccc_cc\u7684\u9635\u5217\u6210\u5458 \u6765\u505a\u8bbe\u5b9a\u3002c_cc\u9635\u5217\u4e3b\u8981\u7528\u4e8e\u6b63\u89c4\u4e0e\u975e\u6b63\u89c4\u4e24\u79cd\u73af\u5883\uff0c\u4f46\u8981\u6ce8\u610f\u7684\u662f\u6b63\u89c4\u4e0e\u975e\u6b63\u89c4\u4e0d\u53ef\u6df7\u4e3a\u4e00\u8c08\u3002\u5176\u5b9a\u4e49\u4e86\u7279\u6b8a\u7684\u63a7\u5236\u5b57\u7b26\u3002\u7b26\u53f7\u4e0b\u6807 (\u521d\u59cb\u503c) \u548c\u610f\u4e49\u4e3a\uff1a<\/p>\n

      * VINTR\uff1a(003, ETX, Ctrl-C, or also 0177, DEL, rubout) \u4e2d\u65ad\u5b57\u7b26\u3002\u53d1\u51fa SIGINT \u4fe1\u53f7\u3002\u5f53\u8bbe\u7f6e ISIG \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VQUIT \uff1a(034, FS, Ctrl-) \u9000\u51fa\u5b57\u7b26\u3002\u53d1\u51fa SIGQUIT \u4fe1\u53f7\u3002\u5f53\u8bbe\u7f6e ISIG \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VERASE \uff1a(0177, DEL, rubout, or 010, BS, Ctrl-H, or also#) \u5220\u9664\u5b57\u7b26\u3002\u5220\u9664\u4e0a\u4e00\u4e2a\u8fd8\u6ca1\u6709\u5220\u6389\u7684\u5b57\u7b26\uff0c\u4f46\u4e0d\u5220\u9664\u4e0a\u4e00\u4e2aEOF \u6216\u884c\u9996\u3002\u5f53\u8bbe\u7f6e ICANON \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VKILL \uff1a(025, NAK, Ctrl-U, or Ctrl-X, or also @) \u7ec8\u6b62\u5b57\u7b26\u3002\u5220\u9664\u81ea\u4e0a\u4e00\u4e2a EOF \u6216\u884c\u9996\u4ee5\u6765\u7684\u8f93\u5165\u3002\u5f53\u8bbe\u7f6e ICANON \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VEOF \uff1a(004, EOT, Ctrl-D) \u6587\u4ef6\u5c3e\u5b57\u7b26\u3002\u66f4\u7cbe\u786e\u5730\u8bf4\uff0c\u8fd9\u4e2a\u5b57\u7b26\u4f7f\u5f97 tty \u7f13\u51b2\u4e2d\u7684\u5185\u5bb9\u88ab\u9001\u5230\u7b49\u5f85\u8f93\u5165\u7684\u7528\u6237\u7a0b\u5e8f\u4e2d\uff0c\u800c\u4e0d\u5fc5\u7b49\u5230 EOL\u3002\u5982\u679c\u5b83\u662f\u4e00\u884c\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\uff0c\u90a3\u4e48\u7528\u6237\u7a0b\u5e8f\u7684read() \u5c06\u8fd4\u56de 0\uff0c\u6307\u793a\u8bfb\u5230\u4e86 EOF\u3002\u5f53\u8bbe\u7f6e ICANON \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VMIN :\u975e canonical \u6a21\u5f0f\u8bfb\u7684\u6700\u5c0f\u5b57\u7b26\u6570\uff08MIN \u4e3b\u8981\u662f\u8868\u793a\u80fd\u6ee1\u8db3read\u7684\u6700\u5c0f\u5b57\u5143\u6570\uff09\u3002
      \n* VEOL :(0, NUL) \u9644\u52a0\u7684\u884c\u5c3e\u5b57\u7b26\u3002\u5f53\u8bbe\u7f6e ICANON \u65f6\u53ef\u88ab\u8bc6\u522b\u3002
      \n* VTIME \uff1a\u975e canonical \u6a21\u5f0f\u8bfb\u65f6\u7684\u5ef6\u65f6\uff0c\u4ee5\u5341\u5206\u4e4b\u4e00\u79d2\u4e3a\u5355\u4f4d\u3002
      \n* VEOL2 \uff1a(not in POSIX; 0, NUL) \u53e6\u4e00\u4e2a\u884c\u5c3e\u5b57\u7b26\u3002\u5f53\u8bbe\u7f6eICANON \u65f6\u53ef\u88ab\u8bc6\u522b\u3002
      \n* VSWTCH \uff1a(not in POSIX; not supported under Linux; 0,NUL) \u5f00\u5173\u5b57\u7b26\u3002(\u53ea\u4e3a shl \u6240\u7528\u3002)
      \n* VSTART \uff1a(021, DC1, Ctrl-Q) \u5f00\u59cb\u5b57\u7b26\u3002\u91cd\u65b0\u5f00\u59cb\u88ab Stop \u5b57\u7b26\u4e2d\u6b62\u7684\u8f93\u51fa\u3002\u5f53\u8bbe\u7f6e IXON \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VSTOP \uff1a(023, DC3, Ctrl-S) \u505c\u6b62\u5b57\u7b26\u3002\u505c\u6b62\u8f93\u51fa\uff0c\u76f4\u5230\u952e\u5165Start \u5b57\u7b26\u3002\u5f53\u8bbe\u7f6e IXON \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VSUSP \uff1a(032, SUB, Ctrl-Z) \u6302\u8d77\u5b57\u7b26\u3002\u53d1\u9001 SIGTSTP \u4fe1\u53f7\u3002\u5f53\u8bbe\u7f6e ISIG \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VDSUSP \uff1a(not in POSIX; not supported under Linux; 031,EM, Ctrl-Y) \u5ef6\u65f6\u6302\u8d77\u4fe1\u53f7\u3002\u5f53\u7528\u6237\u7a0b\u5e8f\u8bfb\u5230\u8fd9\u4e2a\u5b57\u7b26\u65f6\uff0c\u53d1\u9001SIGTSTP \u4fe1\u53f7\u3002\u5f53\u8bbe\u7f6e IEXTEN \u548c ISIG\uff0c\u5e76\u4e14\u7cfb\u7edf\u652f\u6301\u4f5c\u4e1a\u7ba1\u7406\u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VLNEXT \uff1a(not in POSIX; 026, SYN, Ctrl-V) \u5b57\u9762\u4e0a\u7684\u4e0b\u4e00\u4e2a\u3002\u5f15\u7528\u4e0b\u4e00\u4e2a\u8f93\u5165\u5b57\u7b26\uff0c\u53d6\u6d88\u5b83\u7684\u4efb\u4f55\u7279\u6b8a\u542b\u4e49\u3002\u5f53\u8bbe\u7f6eIEXTEN \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VWERASE \uff1a(not in POSIX; 027, ETB, Ctrl-W) \u5220\u9664\u8bcd\u3002\u5f53\u8bbe\u7f6e ICANON \u548c IEXTEN \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VREPRINT \uff1a(not in POSIX; 022, DC2, Ctrl-R) \u91cd\u65b0\u8f93\u51fa\u672a\u8bfb\u7684\u5b57\u7b26\u3002\u5f53\u8bbe\u7f6e ICANON \u548c IEXTEN \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VDISCARD \uff1a(not in POSIX; not supported under Linux;017, SI, Ctrl-O) \u5f00\u5173\uff1a\u5f00\u59cb\/\u7ed3\u675f\u4e22\u5f03\u672a\u5b8c\u6210\u7684\u8f93\u51fa\u3002\u5f53\u8bbe\u7f6eIEXTEN \u65f6\u53ef\u88ab\u8bc6\u522b\uff0c\u4e0d\u518d\u4f5c\u4e3a\u8f93\u5165\u4f20\u9012\u3002
      \n* VSTATUS \uff1a(not in POSIX; not supported under Linux;status request: 024, DC4, Ctrl-T).
      \n* \u8fd9\u4e9b\u7b26\u53f7\u4e0b\u6807\u503c\u662f\u4e92\u4e0d\u76f8\u540c\u7684\uff0c\u9664\u4e86 VTIME\uff0cVMIN \u7684\u503c\u53ef\u80fd\u5206\u522b\u4e0e VEOL\uff0cVEOF \u76f8\u540c\u3002 (\u5728 non-canonical \u6a21\u5f0f\u4e0b\uff0c\u7279\u6b8a\u5b57\u7b26\u7684\u542b\u4e49\u66f4\u6539\u4e3a\u5ef6\u65f6\u542b\u4e49\u3002MIN \u8868\u793a\u5e94\u5f53\u88ab\u8bfb\u5165\u7684\u6700\u5c0f\u5b57\u7b26\u6570\u3002TIME \u662f\u4ee5\u5341\u5206\u4e4b\u4e00\u79d2\u4e3a\u5355\u4f4d\u7684\u8ba1\u65f6\u5668\u3002\u5982\u679c\u540c\u65f6\u8bbe\u7f6e\u4e86\u5b83\u4eec\uff0cread \u5c06\u7b49\u5f85\u76f4\u5230\u81f3\u5c11\u8bfb\u5165\u4e00\u4e2a\u5b57\u7b26\uff0c\u4e00\u65e6\u8bfb\u5165 MIN \u4e2a\u5b57\u7b26\u6216\u8005
      \n\u4ece\u4e0a\u6b21\u8bfb\u5165\u5b57\u7b26\u5f00\u59cb\u7ecf\u8fc7\u4e86 TIME \u65f6\u95f4\u5c31\u7acb\u5373\u8fd4\u56de\u3002\u5982\u679c\u53ea\u8bbe\u7f6e\u4e86 MIN\uff0cread \u5728\u8bfb\u5165 MIN \u4e2a\u5b57\u7b26\u4e4b\u524d\u4e0d\u4f1a\u8fd4\u56de\u3002\u5982\u679c\u53ea\u8bbe\u7f6e\u4e86TIME\uff0cread \u5c06\u5728\u81f3\u5c11\u8bfb\u5165\u4e00\u4e2a\u5b57\u7b26\uff0c\u6216\u8005\u8ba1\u65f6\u5668\u8d85\u65f6\u7684\u65f6\u5019\u7acb\u5373\u8fd4\u56de\u3002\u5982\u679c\u90fd\u6ca1\u6709\u8bbe\u7f6e\uff0cread \u5c06\u7acb\u5373\u8fd4\u56de\uff0c\u53ea\u7ed9\u51fa\u5f53\u524d\u51c6\u5907\u597d\u7684\u5b57\u7b26\u3002)MIN\u4e0e TIME\u7ec4\u5408\u6709\u4ee5\u4e0b\u56db\u79cd\uff1a
      \n1\u3001 MIN = 0 , TIME =0 \u6709READ\u7acb\u5373\u56de\u4f20\u5426\u5219\u4f20\u56de 0 ,\u4e0d\u8bfb\u53d6\u4efb\u4f55\u5b57\u5143
      \n2\u3001 MIN = 0 , TIME >0 READ \u4f20\u56de\u8bfb\u5230\u7684\u5b57\u5143,\u6216\u5728\u5341\u5206\u4e4b\u4e00\u79d2\u540e\u4f20\u56deTIME\u82e5\u6765\u4e0d\u53ca\u8bfb\u5230\u4efb\u4f55\u5b57\u5143,\u5219\u4f20\u56de0
      \n3\u3001 MIN > 0 , TIME =0 READ \u4f1a\u7b49\u5f85,\u76f4\u5230MIN\u5b57\u5143\u53ef\u8bfb<\/p>\n

      4\u3001 MIN > 0 , TIME > 0 \u6bcf\u4e00\u683c\u5b57\u5143\u4e4b\u95f4\u8ba1\u65f6\u5668\u5373\u4f1a\u88ab\u542f\u52a8READ \u4f1a\u5728\u8bfb\u5230MIN\u5b57\u5143,\u4f20\u56de\u503c\u6216TIME\u7684\u5b57\u5143\u8ba1\u65f6(1\/10\u79d2)\u8d85\u8fc7\u65f6\u5c06\u503c \u4f20\u56de<\/p>\n

      \u00a0 \u56db\u3001 \u4e0e\u6b64\u7ed3\u6784\u4f53\u76f8\u5173\u7684\u51fd\u6570<\/strong>
      \n\u00a0 \uff08\u4e00\uff09tcgetattr()<\/strong>
      \n1.\u539f\u578b<\/p>\n

      \n
      <\/div>\n
        \n
      1. int<\/span>\u00a0tcgetattr(int<\/span>\u00a0fd,struct<\/span>\u00a0termois\u00a0&\u00a0termios_p);<\/li>\n<\/ol>\n<\/div>\n

        2.\u529f\u80fd
        \n\u53d6\u5f97\u7ec8\u7aef\u4ecb\u8d28\uff08fd\uff09\u521d\u59cb\u503c\uff0c\u5e76\u628a\u5176\u503c \u8d4b\u7ed9temios_p;\u51fd\u6570\u53ef\u4ee5\u4ece\u540e\u53f0\u8fdb\u7a0b\u4e2d\u8c03\u7528\uff1b\u4f46\u662f\uff0c\u7ec8\u7aef\u5c5e\u6027\u53ef\u80fd\u88ab\u540e\u6765\u7684\u524d \u53f0\u8fdb\u7a0b\u6240\u6539\u53d8\u3002<\/p>\n

        \u00a0 \uff08\u4e8c\uff09tcsetattr()\u00a0<\/strong>
        \n1.\u539f\u578b<\/p>\n

        \n
        <\/div>\n
          \n
        1. int<\/span>\u00a0tcsetattr(int<\/span>\u00a0fd,int<\/span>\u00a0actions,const<\/span>\u00a0struct<\/span>\u00a0termios\u00a0*termios_p);<\/li>\n<\/ol>\n<\/div>\n

          2.\u529f\u80fd
          \n\u8bbe\u7f6e\u4e0e\u7ec8\u7aef\u76f8\u5173\u7684\u53c2\u6570 (\u9664\u975e\u9700\u8981\u5e95\u5c42\u652f\u6301\u5374\u65e0\u6cd5\u6ee1\u8db3)\uff0c\u4f7f\u7528termios_p \u5f15\u7528\u7684 termios \u7ed3\u6784\u3002optional_actions \uff08tcsetattr\u51fd\u6570\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff09\u6307\u5b9a\u4e86\u4ec0\u4e48\u65f6\u5019\u6539\u53d8\u4f1a\u8d77\u4f5c\u7528\uff1a
          \n* TCSANOW\uff1a\u6539\u53d8\u7acb\u5373\u53d1\u751f
          \n* TCSADRAIN\uff1a\u6539\u53d8\u5728\u6240\u6709\u5199\u5165 fd \u7684\u8f93\u51fa\u90fd\u88ab\u4f20\u8f93\u540e\u751f\u6548\u3002\u8fd9\u4e2a\u51fd\u6570\u5e94\u5f53\u7528\u4e8e\u4fee\u6539\u5f71\u54cd\u8f93\u51fa\u7684\u53c2\u6570\u65f6\u4f7f\u7528\u3002(\u5f53\u524d\u8f93\u51fa\u5b8c\u6210\u65f6\u5c06\u503c\u6539\u53d8)<\/p>\n

          * TCSAFLUSH \uff1a\u6539\u53d8\u5728\u6240\u6709\u5199\u5165 fd \u5f15\u7528\u7684\u5bf9\u8c61\u7684\u8f93\u51fa\u90fd\u88ab\u4f20\u8f93\u540e\u751f\u6548\uff0c\u6240\u6709\u5df2\u63a5\u53d7\u4f46\u672a\u8bfb\u5165\u7684\u8f93\u5165\u90fd\u5728\u6539\u53d8\u53d1\u751f\u524d\u4e22\u5f03(\u540cTCSADRAIN\uff0c\u4f46\u4f1a\u820d\u5f03\u5f53\u524d\u6240\u6709\u503c)\u3002<\/p>\n

          \u00a0 \uff08\u4e09\uff09tcsendbreak()<\/strong><\/p>\n

          \u4f20\u9001\u8fde\u7eed\u7684 0 \u503c\u6bd4\u7279\u6d41\uff0c\u6301\u7eed\u4e00\u6bb5\u65f6\u95f4\uff0c\u5982\u679c\u7ec8\u7aef\u4f7f\u7528\u5f02\u6b65\u4e32\u884c\u6570\u636e\u4f20\u8f93\u7684\u8bdd\u3002\u5982\u679c duration \u662f 0\uff0c\u5b83\u81f3\u5c11\u4f20\u8f93 0.25 \u79d2\uff0c\u4e0d\u4f1a\u8d85\u8fc7 0.5 \u79d2\u3002\u5982\u679cduration \u975e\u96f6\uff0c\u5b83\u53d1\u9001\u7684\u65f6\u95f4\u957f\u5ea6\u7531\u5b9e\u73b0\u5b9a\u4e49\u3002\u5982\u679c\u7ec8\u7aef\u5e76\u975e\u4f7f\u7528\u5f02\u6b65\u4e32\u884c\u6570\u636e\u4f20\u8f93\uff0ctcsendbreak() \u4ec0\u4e48\u90fd\u4e0d\u505a\u3002<\/p>\n

          \u00a0 \uff08\u56db\uff09tcdrain()\u00a0<\/strong><\/p>\n

          \u7b49\u5f85\u76f4\u5230\u6240\u6709\u5199\u5165 fd \u5f15\u7528\u7684\u5bf9\u8c61\u7684\u8f93\u51fa\u90fd\u88ab\u4f20\u8f93\u3002<\/p>\n

          \uff08\u4e94\uff09tcflush()\u00a0<\/strong>
          \n\u4e22\u5f03\u8981\u5199\u5165\u5f15\u7528\u7684\u5bf9\u8c61\uff0c\u4f46\u662f\u5c1a\u672a\u4f20\u8f93\u7684\u6570\u636e\uff0c\u6216\u8005\u6536\u5230\u4f46\u662f\u5c1a\u672a\u8bfb\u53d6\u7684\u6570\u636e\uff0c\u53d6\u51b3\u4e8e queue_selector \u7684\u503c\uff1a
          \n* TCIFLUSH \uff1a\u5237\u65b0\u6536\u5230\u7684\u6570\u636e\u4f46\u662f\u4e0d\u8bfb
          \n* TCOFLUSH \uff1a\u5237\u65b0\u5199\u5165\u7684\u6570\u636e\u4f46\u662f\u4e0d\u4f20\u9001<\/p>\n

          * TCIOFLUSH \uff1a\u540c\u65f6\u5237\u65b0\u6536\u5230\u7684\u6570\u636e\u4f46\u662f\u4e0d\u8bfb\uff0c\u5e76\u4e14\u5237\u65b0\u5199\u5165\u7684\u6570\u636e\u4f46\u662f\u4e0d\u4f20\u9001<\/p>\n

          \uff08\u516d\uff09tcflow()\u00a0<\/strong>
          \n\u6302\u8d77 fd \u5f15\u7528\u7684\u5bf9\u8c61\u4e0a\u7684\u6570\u636e\u4f20\u8f93\u6216\u63a5\u6536\uff0c\u53d6\u51b3\u4e8e action \u7684\u503c\uff1a
          \n* TCOOFF \uff1a\u6302\u8d77\u8f93\u51fa
          \n* TCOON \uff1a\u91cd\u65b0\u5f00\u59cb\u88ab\u6302\u8d77\u7684\u8f93\u51fa
          \n* TCIOFF \uff1a\u53d1\u9001\u4e00\u4e2a STOP \u5b57\u7b26\uff0c\u505c\u6b62\u7ec8\u7aef\u8bbe\u5907\u5411\u7cfb\u7edf\u4f20\u9001\u6570\u636e
          \n* TCION \uff1a\u53d1\u9001\u4e00\u4e2a START \u5b57\u7b26\uff0c\u4f7f\u7ec8\u7aef\u8bbe\u5907\u5411\u7cfb\u7edf\u4f20\u8f93\u6570\u636e\u6253\u5f00\u4e00\u4e2a\u7ec8\u7aef\u8bbe\u5907\u65f6\u7684\u9ed8\u8ba4\u8bbe\u7f6e\u662f\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u6ca1\u6709\u6302\u8d77\u3002<\/p>\n

          \u00a0 \uff08\u4e03\uff09 \u6ce2\u7279\u7387\u51fd\u6570\u00a0<\/strong>
          \n\u88ab\u7528\u6765\u83b7\u53d6\u548c\u8bbe\u7f6e termios \u7ed3\u6784\u4e2d\uff0c\u8f93\u5165\u548c\u8f93\u51fa\u6ce2\u7279\u7387\u7684\u503c\u3002\u65b0\u503c\u4e0d\u4f1a\u9a6c\u4e0a\u751f\u6548\uff0c\u76f4\u5230\u6210\u529f\u8c03\u7528\u4e86 tcsetattr() \u51fd\u6570\u3002\u8bbe\u7f6e\u901f\u5ea6\u4e3a B0 \u4f7f\u5f97 modem “\u6302\u673a”\u3002\u4e0e B38400 \u76f8\u5e94\u7684\u5b9e\u9645\u6bd4\u7279\u7387\u53ef\u4ee5\u7528setserial(8) \u8c03\u6574\u3002 \u8f93\u5165\u548c\u8f93\u51fa\u6ce2\u7279\u7387\u88ab\u4fdd\u5b58\u4e8e termios \u7ed3\u6784\u4e2d\u3002 cfmakeraw \u8bbe\u7f6e\u7ec8\u7aef\u5c5e\u6027\u5982\u4e0b\uff1a<\/p>\n

          \n
          <\/div>\n
            \n
          1. termios_p->c_iflag\u00a0&=\u00a0~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);<\/li>\n
          2. termios_p->c_oflag\u00a0&=\u00a0~OPOST;<\/li>\n
          3. termios_p->c_lflag\u00a0&=\u00a0~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);<\/li>\n
          4. termios_p->c_cflag\u00a0&=\u00a0~(CSIZE|PARENB);<\/li>\n
          5. termios_p->c_cflag\u00a0|=\u00a0CS8;<\/li>\n<\/ol>\n<\/div>\n

            *cfgetospeed() \u8fd4\u56de termios_p \u6307\u5411\u7684 termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u51fa\u6ce2\u7279\u7387
            \n*cfsetospeed() \u8bbe\u7f6e termios_p \u6307\u5411\u7684 termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u51fa\u6ce2\u7279\u7387\u4e3aspeed\u3002\u53d6\u503c\u5fc5\u987b\u662f\u4ee5\u4e0b\u5e38\u91cf\u4e4b\u4e00\uff1a<\/p>\n

            \n
            \n
            [cpp]<\/b> view plain<\/a>copy<\/a><\/p>\n
            <\/embed><\/div>\n<\/div>\n<\/div>\n
              \n
            1. B0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B50\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B75\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B110\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B134\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B150<\/li>\n
            2. B200\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B300\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B600\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B1200\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B1800<\/li>\n
            3. B2400\u00a0\u00a0\u00a0\u00a0\u00a0B4800\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B9600\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B19200\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B38400<\/li>\n
            4. B57600\u00a0\u00a0\u00a0\u00a0B115200\u00a0\u00a0\u00a0\u00a0B230400<\/li>\n<\/ol>\n<\/div>\n

              \u5176\u4e2d\uff1a\u96f6\u503c B0 \u7528\u6765\u4e2d\u65ad\u8fde\u63a5\u3002\u5982\u679c\u6307\u5b9a\u4e86 B0\uff0c\u4e0d\u5e94\u5f53\u518d\u5047\u5b9a\u5b58\u5728\u8fde\u63a5\u3002\u901a\u5e38\uff0c\u8fd9\u6837\u5c06\u65ad\u5f00\u8fde\u63a5\u3002CBAUDEX \u662f\u4e00\u4e2a\u63a9\u7801\uff0c\u6307\u793a\u9ad8\u4e8e POSIX.1 \u5b9a\u4e49\u7684\u901f\u5ea6\u7684\u90a3\u4e00\u4e9b(57600 \u53ca\u4ee5\u4e0a)\u3002\u56e0\u6b64\uff0cB57600 & CBAUDEX \u4e3a\u975e\u96f6\u3002
              \n*cfgetispeed() \u8fd4\u56de termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u5165\u6ce2\u7279\u7387\u3002<\/p>\n

              *cfsetispeed() \u8bbe\u7f6e termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u5165\u6ce2\u7279\u7387\u4e3a speed\u3002\u5982\u679c\u8f93\u5165\u6ce2\u7279\u7387\u88ab\u8bbe\u4e3a0\uff0c\u5b9e\u9645\u8f93\u5165\u6ce2\u7279\u7387\u5c06\u7b49\u4e8e\u8f93\u51fa\u6ce2\u7279\u7387\u3002<\/p>\n

              \u4e94\u3001 RETURN VALUE \u8fd4\u56de\u503c<\/strong>
              \n*cfgetispeed() \u8fd4\u56de termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u5165\u6ce2\u7279\u7387\u3002
              \n*cfgetospeed() \u8fd4\u56de termios \u7ed3\u6784\u4e2d\u5b58\u50a8\u7684\u8f93\u51fa\u6ce2\u7279\u7387\u3002
              \n3>. \u5176\u4ed6\u51fd\u6570\u8fd4\u56de\uff1a
              \n0\uff1a\u6210 \u529f<\/p>\n

              -1:\u5931 \u8d25\uff0c\u5e76\u4e14\u4e3a errno \u7f6e\u503c\u6765\u6307\u793a\u9519\u8bef\u3002\u6ce8\u610f tcsetattr() \u8fd4\u56de\u6210\u529f\uff0c\u5982\u679c\u4efb\u4f55\u6240\u8981\u6c42\u7684\u4fee\u6539\u53ef\u4ee5\u5b9e\u73b0\u7684\u8bdd\u3002\u56e0\u6b64\uff0c\u5f53\u8fdb\u884c\u591a\u91cd\u4fee\u6539\u65f6\uff0c\u5e94\u5f53\u5728\u8fd9\u4e2a\u51fd\u6570\u4e4b\u540e\u518d\u6b21\u8c03\u7528 tcgetattr() \u6765\u68c0\u6d4b\u662f\u5426\u6240\u6709\u4fee\u6539\u90fd\u6210\u529f\u5b9e\u73b0\u3002<\/p>\n

              \u516d\u3001NOTES \u6ce8\u610f<\/strong><\/p>\n

              Unix V7 \u4ee5\u53ca\u5f88\u591a\u540e\u6765\u7684\u7cfb\u7edf\u6709\u4e00\u4e2a\u6ce2\u7279\u7387\u7684\u5217\u8868\uff0c\u5728\u5341\u56db\u4e2a\u503c B0, …, B9600\u4e4b\u540e\u53ef\u4ee5\u770b\u5230\u4e24\u4e2a\u5e38\u6570 EXTA, EXTB (“External A” and “External B”)\u3002\u5f88\u591a\u7cfb\u7edf\u5c06\u8fd9\u4e2a\u5217\u8868\u6269\u5c55\u4e3a\u66f4\u9ad8\u7684\u6ce2\u7279\u7387\u3002tcsendbreak \u4e2d\u975e\u96f6\u7684 duration \u6709\u4e0d\u540c\u7684\u6548\u679c\u3002SunOS \u6307\u5b9a\u4e2d\u65ad duration*N\u79d2\uff0c\u5176\u4e2d N \u81f3\u5c11\u4e3a 0.25\uff0c\u4e0d\u9ad8\u4e8e 0.5 \u3002Linux, AIX, DU, Tru64 \u53d1\u9001 duration\u5fae\u79d2\u7684 break \u3002FreeBSD, NetBSD, HP-UX \u4ee5\u53ca MacOS \u5ffd\u7565 duration \u7684\u503c\u3002\u5728Solaris \u548c Unixware \u4e2d\uff0c tcsendbreak \u642d\u914d\u975e\u96f6\u7684 duration \u6548\u679c\u7c7b\u4f3c\u4e8etcdrain\u3002<\/p>\n

              SEE ALSO \u53c2\u89c1stty(1), setserial(8)<\/p>\n","protected":false},"excerpt":{"rendered":"

              \u4e00\u3001\u6570\u636e\u6210\u5458 termios \u51fd\u6570\u65cf\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5e38\u89c4\u7684\u7ec8\u7aef\u63a5\u53e3\uff0c\u7528\u4e8e\u63a7\u5236\u975e\u540c\u6b65\u901a\u4fe1\u7aef\u53e3\u3002 \u8fd9\u4e2a\u7ed3\u6784\u5305\u542b […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-36","post","type-post","status-publish","format-standard","hentry","category-objective-c"],"_links":{"self":[{"href":"http:\/\/www.kejidana.com\/index.php?rest_route=\/wp\/v2\/posts\/36","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.kejidana.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kejidana.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kejidana.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kejidana.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=36"}],"version-history":[{"count":0,"href":"http:\/\/www.kejidana.com\/index.php?rest_route=\/wp\/v2\/posts\/36\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.kejidana.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kejidana.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kejidana.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}