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-rw-r--r--write_or_die.c44
1 files changed, 9 insertions, 35 deletions
diff --git a/write_or_die.c b/write_or_die.c
index e125e11d3..4c29255df 100644
--- a/write_or_die.c
+++ b/write_or_die.c
@@ -34,48 +34,22 @@ void maybe_flush_or_die(FILE *f, const char *desc)
return;
}
if (fflush(f)) {
- if (errno == EPIPE)
+ /*
+ * On Windows, EPIPE is returned only by the first write()
+ * after the reading end has closed its handle; subsequent
+ * write()s return EINVAL.
+ */
+ if (errno == EPIPE || errno == EINVAL)
exit(0);
die("write failure on %s: %s", desc, strerror(errno));
}
}
-int read_in_full(int fd, void *buf, size_t count)
-{
- char *p = buf;
- ssize_t total = 0;
-
- while (count > 0) {
- ssize_t loaded = xread(fd, p, count);
- if (loaded <= 0)
- return total ? total : loaded;
- count -= loaded;
- p += loaded;
- total += loaded;
- }
-
- return total;
-}
-
-int write_in_full(int fd, const void *buf, size_t count)
+void fsync_or_die(int fd, const char *msg)
{
- const char *p = buf;
- ssize_t total = 0;
-
- while (count > 0) {
- ssize_t written = xwrite(fd, p, count);
- if (written < 0)
- return -1;
- if (!written) {
- errno = ENOSPC;
- return -1;
- }
- count -= written;
- p += written;
- total += written;
+ if (fsync(fd) < 0) {
+ die("%s: fsync error (%s)", msg, strerror(errno));
}
-
- return total;
}
void write_or_die(int fd, const void *buf, size_t count)