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Detect out of space errors with posix_fallocate #445

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Detect out of space errors with posix_fallocate #445

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17 changes: 12 additions & 5 deletions librdmacm/examples/rcopy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -227,9 +227,10 @@ static int server_listen(void)
return ret;
}

static char *path = NULL;

static int server_open(int rs, struct msg_hdr *msg)
{
char *path = NULL;
int ret, len;

printf("opening: ");
Expand Down Expand Up @@ -264,8 +265,6 @@ static int server_open(int rs, struct msg_hdr *msg)

ret = 0;
out:
if (path)
free(path);

msg_send_resp(rs, msg, ret);
return ret;
Expand All @@ -286,6 +285,10 @@ static void server_close(int rs, struct msg_hdr *msg)
close(fd);
fd = 0;
}

free(path);
path = NULL;

printf("done\n");
}

Expand All @@ -312,9 +315,13 @@ static int server_write(int rs, struct msg_hdr *msg)
if (ret != sizeof bytes)
goto out;

ret = ftruncate(fd, bytes);
if (ret)
ret = posix_fallocate(fd, 0, bytes);
if (ret) {
printf("...error allocating file\n");
close(fd);
unlink(path);
goto out;
}

file_addr = mmap(NULL, bytes, PROT_WRITE, MAP_SHARED, fd, 0);
if (file_addr == (void *) -1) {
Expand Down