102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <pthread.h>
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#include "./test_chk.h"
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#include "./test_rusage.h"
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#define TEST_NAME "CT_010"
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void *subth_func(void *arg)
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{
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int rc;
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char *buf_subth = NULL;
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struct rusage cur_rusage;
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long cur_maxrss;
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/* check rusage in sub thread */
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rc = getrusage(RUSAGE_THREAD, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage");
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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printf(" [ RUSAGE_THREAD ]\n");
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OKNG(cur_maxrss < (8 * 1024) ,
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" maxrss: %d KB", cur_maxrss);
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/* mmap 16MB */
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printf(" ---- mmap and access 16MB (%d KB) in sub thread ----\n", 16 * 1024);
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buf_subth = mmap(0, 16 * M_BYTE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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memset(buf_subth, 0xff, 16 * M_BYTE);
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printf(" ---- munmap 16MB (%d KB) in sub thread ----\n", 16 * 1024);
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/* unmap */
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munmap(buf_subth, 16 * M_BYTE);
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fn_fail:
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printf(" ---- sub thread exit ----\n");
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return;
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}
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int main(int argc, char* argv[])
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{
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int rc;
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char *buf = NULL;
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struct rusage cur_rusage;
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long cur_maxrss, prev_maxrss = 0, delta_maxrss;
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int status;
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pthread_t sub_th;
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printf("---- just started ----\n");
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/* check rusage 1st */
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rc = getrusage(RUSAGE_THREAD, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 1st");
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_THREAD ]\n");
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OKNG(cur_maxrss < 0 ,
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_maxrss = cur_maxrss;
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/* mmap 8MB */
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printf("---- mmap and access 8MB (%d KB) in main thread ----\n", 8 * 1024);
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buf = mmap(0, 8 * M_BYTE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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memset(buf, 0xff, 8 * M_BYTE);
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printf("---- munmap 8MB (%d KB) in main thread ----\n", 8 * 1024);
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/* unmap */
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munmap(buf, 8 * M_BYTE);
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printf("---- create and join thread ----\n");
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status = pthread_create(&sub_th, NULL, subth_func, NULL);
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CHKANDJUMP(status != 0, "pthread_create()");
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pthread_join(sub_th, NULL);
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/* check rusage 2nd */
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rc = getrusage(RUSAGE_THREAD, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 2nd");
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_THREAD ]\n");
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OKNG(cur_maxrss < (16 * 1024) ,
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_maxrss = cur_maxrss;
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printf("*** %s PASS\n\n", TEST_NAME);
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return 0;
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fn_fail:
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printf("*** %s FAILED\n\n", TEST_NAME);
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return -1;
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}
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