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  • Committer: Bazaar Package Importer
  • Author(s): Yu Guanghui
  • Date: 2007-08-07 13:25:49 UTC
  • mfrom: (1.1.2 upstream) (2.1.1 lenny)
  • Revision ID: james.westby@ubuntu.com-20070807132549-96159k1obat1fxr0
Tags: 1.2.3-1
http://bugs.debian.org/423933
* New upstream release
* Added NO_BFD=1, don't require libbfd now. (Closes:Bug#423933) 

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device/uart/skyeye_uart_stdio.c
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#ifndef __MINGW32__
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#ifdef __BEOS__
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#include <BeBuild.h>
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#if (B_BEOS_VERSION >= 0x510)
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#include <sys/select.h>
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#endif
 
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        #include <BeBuild.h>
 
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        #if (B_BEOS_VERSION >= 0x510)
 
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                #include <sys/select.h>
 
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        #else /* B_BEOS_VERSION < 0x510 */
 
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                #define SELECT_UNSUPPORTED
 
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        #endif /* B_BEOS_VERSION >= 0x510 */
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#else /* !__BEOS__ */
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#include <sys/select.h>
 
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        #include <sys/select.h>
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#endif /* __BEOS__ */
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#ifdef SELECT_UNSUPPORTED
 
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        #include <stdint.h>
 
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        #include "portable/usleep.h"
 
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#endif /* SELECT_UNSUPPORTED */
 
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#include <unistd.h>
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#include <termios.h>
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int uart_stdio_read(struct uart_device *uart_dev, void *buf, size_t count, struct timeval *timeout)
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{
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        /*
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         * 2007-02-02 by Anthony Lee : for BeOS R5.0.x.
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         * BeOS R5.0.x don't support select, and terminal is non-blocking now.
 
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         * 2007-03-03 by Anthony Lee : for the system that don't support select().
 
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         * WHY: maybe useful for real-time improvement.
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         */
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#if !(defined(__BEOS__) && B_BEOS_VERSION < 0x510)
 
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#ifndef SELECT_UNSUPPORTED
 
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        fd_set rfds;
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        FD_ZERO(&rfds);
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        FD_SET(0, &rfds);
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        if(select(1, &rfds, NULL, NULL, timeout) != 1 || !FD_ISSET(0, &rfds)) return 0;
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#endif
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        return read(0, buf, count);
 
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#else /* SELECT_UNSUPPORTED */
 
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        int retVal;
 
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        int64_t time_left;
 
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        if(timeout != NULL) time_left = (int64_t)timeout->tv_sec * (int64_t)1000000 + (int64_t)timeout->tv_usec;
 
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        while(1)
 
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        {
 
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                /* for non-blocking input, instead of polling. */
 
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                if((retVal = read(0, buf, count)) != 0) break;
 
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                if(timeout == NULL) continue;
 
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                if(time_left <= 0) break;
 
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                usleep(1000);
 
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                time_left -= (int64_t)1000;
 
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        }
 
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        return retVal;
 
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#endif /* !SELECT_UNSUPPORTED */
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}
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