6ce4e61f1b
If GIT_TRACE is set to an absolute path (starting with a '/' character), we interpret this as a file path and we trace into it. Also if GIT_TRACE is set to an integer value greater than 1 and lower than 10, we interpret this as an open fd value and we trace into it. Note that this behavior is not compatible with the previous one. We also trace whole messages using one write(2) call to make sure messages from processes do net get mixed up in the middle. This patch makes it possible to get trace information when running "make test". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
46 lines
831 B
C
46 lines
831 B
C
#include "cache.h"
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void write_or_die(int fd, const void *buf, size_t count)
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{
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const char *p = buf;
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ssize_t written;
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while (count > 0) {
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written = xwrite(fd, p, count);
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if (written == 0)
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die("disk full?");
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else if (written < 0) {
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if (errno == EPIPE)
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exit(0);
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die("write error (%s)", strerror(errno));
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}
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count -= written;
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p += written;
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}
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}
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int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
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{
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const char *p = buf;
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ssize_t written;
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while (count > 0) {
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written = xwrite(fd, p, count);
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if (written == 0) {
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fprintf(stderr, "%s: disk full?\n", msg);
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return 0;
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}
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else if (written < 0) {
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if (errno == EPIPE)
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exit(0);
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fprintf(stderr, "%s: write error (%s)\n",
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msg, strerror(errno));
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return 0;
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}
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count -= written;
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p += written;
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}
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return 1;
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}
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