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| author | Micael Karlberg <bmk@erlang.org> | 2011-09-23 14:10:53 +0200 |
|---|---|---|
| committer | Micael Karlberg <bmk@erlang.org> | 2011-09-23 14:10:53 +0200 |
| commit | 524ad34276ef31fc5c306943539e3fe9bd19ad8c (patch) | |
| tree | b6d497f9461375b02527bc3d1f10c7a58f3e38e0 /lib/os_mon | |
| parent | 3f9de4601b8539eea14de2d1517f54956e05d03a (diff) | |
| parent | 92657321ac647f343c6b88985d66a2d611fd982d (diff) | |
| download | otp-524ad34276ef31fc5c306943539e3fe9bd19ad8c.tar.gz otp-524ad34276ef31fc5c306943539e3fe9bd19ad8c.tar.bz2 otp-524ad34276ef31fc5c306943539e3fe9bd19ad8c.zip | |
Merge branch 'major' of super:otp into bmk/inets/inets58_integration
Diffstat (limited to 'lib/os_mon')
| -rw-r--r-- | lib/os_mon/c_src/cpu_sup.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/lib/os_mon/c_src/cpu_sup.c b/lib/os_mon/c_src/cpu_sup.c index fbf318c614..e3bdbd1489 100644 --- a/lib/os_mon/c_src/cpu_sup.c +++ b/lib/os_mon/c_src/cpu_sup.c @@ -191,7 +191,10 @@ int main(int argc, char** argv) { static cpu_t *read_procstat(FILE *fp, cpu_t *cpu) { char buffer[BUFFERSIZE]; - fgets(buffer, BUFFERSIZE, fp); + if (fgets(buffer, BUFFERSIZE, fp) == NULL) { + memset(cpu, 0, sizeof(cpu_t)); + return cpu; + } sscanf(buffer, "cpu%u %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", &(cpu->id), &(cpu->user), @@ -223,7 +226,11 @@ static void util_measure(unsigned int **result_vec, int *result_sz) { return; } - fgets(buffer, BUFFERSIZE, fp); /*ignore read*/ + /*ignore read*/ + if (fgets(buffer, BUFFERSIZE, fp) == NULL) { + *result_sz = 0; + return; + } rv = *result_vec; rv[0] = no_of_cpus; rv[1] = CU_VALUES; @@ -447,8 +454,12 @@ static void sendv(unsigned int data[], int ints) { } static void error(char* err_msg) { - write(FD_ERR, err_msg, strlen(err_msg)); - write(FD_ERR, "\n", 1); + /* + * if we get error here we have trouble, + * silence unnecessary warnings + */ + if(write(FD_ERR, err_msg, strlen(err_msg))); + if(write(FD_ERR, "\n", 1)); exit(-1); } |