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// RUN: %libomp-compile-and-run
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <omp.h>
#define XSTR(x) #x
#define STR(x) XSTR(x)
#define streqls(s1, s2) (!strcmp(s1, s2))
#define check(condition) \
if (!(condition)) { \
fprintf(stderr, "error: %s: %d: " STR(condition) "\n", __FILE__, \
__LINE__); \
exit(1); \
}
#define BUFFER_SIZE 1024
char buf[BUFFER_SIZE];
#pragma omp threadprivate(buf)
char* get_string(size_t check_needed) {
size_t needed = omp_capture_affinity(buf, BUFFER_SIZE, NULL);
//printf("buf = %s\n", buf);
check(needed < BUFFER_SIZE);
if (check_needed != 0) {
check(needed == check_needed);
}
return buf;
}
void check_thread_num_padded_rjustified() {
int i;
const char* formats[2] = {"%0.8{thread_num}", "%0.8n"};
for (i = 0; i < sizeof(formats)/sizeof(formats[0]); ++i) {
omp_set_affinity_format(formats[i]);
#pragma omp parallel num_threads(8)
{
int j;
int tid = omp_get_thread_num();
char ctid = '0' + (char)tid;
char* s = get_string(8);
for (j = 0; j < 7; ++j) {
check(s[j] == '0');
}
check(s[j] == ctid);
}
}
}
void check_thread_num_rjustified() {
int i;
const char* formats[2] = {"%.12{thread_num}", "%.12n"};
for (i = 0; i < sizeof(formats)/sizeof(formats[0]); ++i) {
omp_set_affinity_format(formats[i]);
#pragma omp parallel num_threads(8)
{
int j;
int tid = omp_get_thread_num();
char ctid = '0' + (char)tid;
char* s = get_string(12);
for (j = 0; j < 11; ++j) {
check(s[j] == ' ');
}
check(s[j] == ctid);
}
}
}
void check_thread_num_ljustified() {
int i;
const char* formats[2] = {"%5{thread_num}", "%5n"};
for (i = 0; i < sizeof(formats)/sizeof(formats[0]); ++i) {
omp_set_affinity_format(formats[i]);
#pragma omp parallel num_threads(8)
{
int j;
int tid = omp_get_thread_num();
char ctid = '0' + (char)tid;
char* s = get_string(5);
check(s[0] == ctid);
for (j = 1; j < 5; ++j) {
check(s[j] == ' ');
}
}
}
}
void check_thread_num_padded_ljustified() {
int i;
const char* formats[2] = {"%018{thread_num}", "%018n"};
for (i = 0; i < sizeof(formats)/sizeof(formats[0]); ++i) {
omp_set_affinity_format(formats[i]);
#pragma omp parallel num_threads(8)
{
int j;
int tid = omp_get_thread_num();
char ctid = '0' + (char)tid;
char* s = get_string(18);
check(s[0] == ctid);
for (j = 1; j < 18; ++j) {
check(s[j] == ' ');
}
}
}
}
int main(int argc, char** argv) {
check_thread_num_ljustified();
check_thread_num_rjustified();
check_thread_num_padded_ljustified();
check_thread_num_padded_rjustified();
return 0;
}
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