#include "rcs_defs.hh"#include "writen.h"#include <sys/types.h>#include <sys/time.h>#include <unistd.h>#include <stddef.h>#include <errno.h>#include <string.h>#include <math.h>#include "rcs_prnt.hh"#include "sokintrf.h"Include dependency graph for writen.c:
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Functions | |
| int | writen (int fd, const void *vptr, int n, double _timeout) |
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Definition at line 49 of file writen.c. 00050 {
00051 int nleft;
00052 long nwritten;
00053 char *ptr;
00054 double int_part;
00055 struct timeval timeout_tv;
00056 fd_set write_fd_set;
00057
00058 timeout_tv.tv_sec = (long) _timeout;
00059 timeout_tv.tv_usec = (long) (_timeout * 1000000.0);
00060 if (timeout_tv.tv_usec >= 1000000)
00061 {
00062 timeout_tv.tv_usec = timeout_tv.tv_usec % 1000000;
00063 }
00064 FD_ZERO (&write_fd_set);
00065 RCS_FD_SET (fd, &write_fd_set);
00066
00067 ptr = (char *) vptr; /* can't do pointer arithmetic on void* */
00068 nleft = n;
00069 while (nleft > 0)
00070 {
00071 if (_timeout > 0.0)
00072 {
00073 switch (dl_select
00074 (fd + 1, (fd_set *) NULL, &write_fd_set, (fd_set *) NULL,
00075 &timeout_tv))
00076 {
00077 case -1:
00078 rcs_print_error ("Error in select: %d -> %s\n", errno,
00079 strerror (errno));
00080 return -1;
00081
00082 case 0:
00083 rcs_print_error ("Write timed out.\n");
00084 return -1;
00085
00086 default:
00087 break;
00088 }
00089 }
00090 if ((nwritten = write (fd, ptr, nleft)) == -1)
00091 {
00092 rcs_print_error ("Write error: %d = %s", errno, strerror (errno));
00093 return (-1); /* error */
00094 }
00095
00096 nleft -= nwritten;
00097 ptr += nwritten;
00098 }
00099 return (n);
00100 }
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1.2.11.1 written by Dimitri van Heesch,
© 1997-2001