cvsserver: Add some useful commandline options
[git/spearce.git] / write_or_die.c
blob5c4bc8515ab9484131de7e065e08657315004f8c
1 #include "cache.h"
3 int read_in_full(int fd, void *buf, size_t count)
5 char *p = buf;
6 ssize_t total = 0;
8 while (count > 0) {
9 ssize_t loaded = xread(fd, p, count);
10 if (loaded <= 0)
11 return total ? total : loaded;
12 count -= loaded;
13 p += loaded;
14 total += loaded;
17 return total;
20 int write_in_full(int fd, const void *buf, size_t count)
22 const char *p = buf;
23 ssize_t total = 0;
25 while (count > 0) {
26 ssize_t written = xwrite(fd, p, count);
27 if (written < 0)
28 return -1;
29 if (!written) {
30 errno = ENOSPC;
31 return -1;
33 count -= written;
34 p += written;
35 total += written;
38 return total;
41 void write_or_die(int fd, const void *buf, size_t count)
43 if (write_in_full(fd, buf, count) < 0) {
44 if (errno == EPIPE)
45 exit(0);
46 die("write error (%s)", strerror(errno));
50 int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg)
52 if (write_in_full(fd, buf, count) < 0) {
53 if (errno == EPIPE)
54 exit(0);
55 fprintf(stderr, "%s: write error (%s)\n",
56 msg, strerror(errno));
57 return 0;
60 return 1;
63 int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
65 if (write_in_full(fd, buf, count) < 0) {
66 fprintf(stderr, "%s: write error (%s)\n",
67 msg, strerror(errno));
68 return 0;
71 return 1;