| 1 | #include <stdio.h>
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| 2 | #include <string.h>
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| 3 | #include <poll.h>
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| 4 | #include <errno.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <pthread.h>
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| 7 | #include <unistd.h>
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| 8 | #include <sys/types.h>
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| 9 | #include <sys/wait.h>
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| 10 | #include "pthreadpool.h"
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| 11 |
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| 12 | static int test_init(void)
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| 13 | {
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| 14 | struct pthreadpool *p;
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| 15 | int ret;
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| 16 |
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| 17 | ret = pthreadpool_init(1, &p);
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| 18 | if (ret != 0) {
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| 19 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 20 | strerror(ret));
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| 21 | return -1;
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| 22 | }
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| 23 | ret = pthreadpool_destroy(p);
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| 24 | if (ret != 0) {
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| 25 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 26 | strerror(ret));
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| 27 | return -1;
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| 28 | }
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| 29 | return 0;
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| 30 | }
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| 31 |
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| 32 | static void test_sleep(void *ptr)
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| 33 | {
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| 34 | int *ptimeout = (int *)ptr;
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| 35 | int ret;
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| 36 | ret = poll(NULL, 0, *ptimeout);
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| 37 | if (ret != 0) {
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| 38 | fprintf(stderr, "poll returned %d (%s)\n",
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| 39 | ret, strerror(errno));
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | static int test_jobs(int num_threads, int num_jobs)
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| 44 | {
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| 45 | char *finished;
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| 46 | struct pthreadpool *p;
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| 47 | int timeout = 1;
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| 48 | int i, ret;
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| 49 |
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| 50 | finished = (char *)calloc(1, num_jobs);
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| 51 | if (finished == NULL) {
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| 52 | fprintf(stderr, "calloc failed\n");
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| 53 | return -1;
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| 54 | }
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| 55 |
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| 56 | ret = pthreadpool_init(num_threads, &p);
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| 57 | if (ret != 0) {
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| 58 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 59 | strerror(ret));
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| 60 | return -1;
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| 61 | }
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| 62 |
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| 63 | for (i=0; i<num_jobs; i++) {
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| 64 | ret = pthreadpool_add_job(p, i, test_sleep, &timeout);
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| 65 | if (ret != 0) {
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| 66 | fprintf(stderr, "pthreadpool_add_job failed: %s\n",
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| 67 | strerror(ret));
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| 68 | return -1;
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| 69 | }
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| 70 | }
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| 71 |
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| 72 | for (i=0; i<num_jobs; i++) {
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| 73 | int jobid = -1;
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| 74 | ret = pthreadpool_finished_jobs(p, &jobid, 1);
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| 75 | if ((ret != 1) || (jobid >= num_jobs)) {
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| 76 | fprintf(stderr, "invalid job number %d\n", jobid);
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| 77 | return -1;
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| 78 | }
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| 79 | finished[jobid] += 1;
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| 80 | }
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| 81 |
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| 82 | for (i=0; i<num_jobs; i++) {
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| 83 | if (finished[i] != 1) {
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| 84 | fprintf(stderr, "finished[%d] = %d\n",
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| 85 | i, finished[i]);
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| 86 | return -1;
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| 87 | }
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| 88 | }
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| 89 |
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| 90 | ret = pthreadpool_destroy(p);
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| 91 | if (ret != 0) {
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| 92 | fprintf(stderr, "pthreadpool_destroy failed: %s\n",
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| 93 | strerror(ret));
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| 94 | return -1;
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| 95 | }
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| 96 |
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| 97 | free(finished);
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| 98 | return 0;
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| 99 | }
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| 100 |
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| 101 | static int test_busydestroy(void)
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| 102 | {
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| 103 | struct pthreadpool *p;
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| 104 | int timeout = 50;
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| 105 | struct pollfd pfd;
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| 106 | int ret;
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| 107 |
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| 108 | ret = pthreadpool_init(1, &p);
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| 109 | if (ret != 0) {
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| 110 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 111 | strerror(ret));
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| 112 | return -1;
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| 113 | }
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| 114 | ret = pthreadpool_add_job(p, 1, test_sleep, &timeout);
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| 115 | if (ret != 0) {
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| 116 | fprintf(stderr, "pthreadpool_add_job failed: %s\n",
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| 117 | strerror(ret));
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| 118 | return -1;
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| 119 | }
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| 120 | ret = pthreadpool_destroy(p);
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| 121 | if (ret != EBUSY) {
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| 122 | fprintf(stderr, "Could destroy a busy pool\n");
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| 123 | return -1;
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| 124 | }
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| 125 |
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| 126 | pfd.fd = pthreadpool_signal_fd(p);
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| 127 | pfd.events = POLLIN|POLLERR;
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| 128 |
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| 129 | poll(&pfd, 1, -1);
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| 130 |
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| 131 | ret = pthreadpool_destroy(p);
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| 132 | if (ret != 0) {
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| 133 | fprintf(stderr, "pthreadpool_destroy failed: %s\n",
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| 134 | strerror(ret));
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| 135 | return -1;
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| 136 | }
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| 137 | return 0;
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| 138 | }
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| 139 |
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| 140 | struct threaded_state {
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| 141 | pthread_t tid;
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| 142 | struct pthreadpool *p;
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| 143 | int start_job;
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| 144 | int num_jobs;
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| 145 | int timeout;
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| 146 | };
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| 147 |
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| 148 | static void *test_threaded_worker(void *p)
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| 149 | {
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| 150 | struct threaded_state *state = (struct threaded_state *)p;
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| 151 | int i;
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| 152 |
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| 153 | for (i=0; i<state->num_jobs; i++) {
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| 154 | int ret = pthreadpool_add_job(state->p, state->start_job + i,
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| 155 | test_sleep, &state->timeout);
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| 156 | if (ret != 0) {
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| 157 | fprintf(stderr, "pthreadpool_add_job failed: %s\n",
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| 158 | strerror(ret));
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| 159 | return NULL;
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| 160 | }
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| 161 | }
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| 162 | return NULL;
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| 163 | }
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| 164 |
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| 165 | static int test_threaded_addjob(int num_pools, int num_threads, int poolsize,
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| 166 | int num_jobs)
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| 167 | {
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| 168 | struct pthreadpool **pools;
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| 169 | struct threaded_state *states;
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| 170 | struct threaded_state *state;
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| 171 | struct pollfd *pfds;
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| 172 | char *finished;
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| 173 | pid_t child;
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| 174 | int i, ret, poolnum;
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| 175 | int received;
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| 176 |
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| 177 | states = calloc(num_threads, sizeof(struct threaded_state));
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| 178 | if (states == NULL) {
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| 179 | fprintf(stderr, "calloc failed\n");
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| 180 | return -1;
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| 181 | }
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| 182 |
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| 183 | finished = calloc(num_threads * num_jobs, 1);
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| 184 | if (finished == NULL) {
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| 185 | fprintf(stderr, "calloc failed\n");
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| 186 | return -1;
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| 187 | }
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| 188 |
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| 189 | pools = calloc(num_pools, sizeof(struct pthreadpool *));
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| 190 | if (pools == NULL) {
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| 191 | fprintf(stderr, "calloc failed\n");
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| 192 | return -1;
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| 193 | }
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| 194 |
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| 195 | pfds = calloc(num_pools, sizeof(struct pollfd));
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| 196 | if (pfds == NULL) {
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| 197 | fprintf(stderr, "calloc failed\n");
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| 198 | return -1;
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| 199 | }
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| 200 |
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| 201 | for (i=0; i<num_pools; i++) {
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| 202 | ret = pthreadpool_init(poolsize, &pools[i]);
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| 203 | if (ret != 0) {
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| 204 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 205 | strerror(ret));
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| 206 | return -1;
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| 207 | }
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| 208 | pfds[i].fd = pthreadpool_signal_fd(pools[i]);
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| 209 | pfds[i].events = POLLIN|POLLHUP;
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| 210 | }
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| 211 |
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| 212 | poolnum = 0;
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| 213 |
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| 214 | for (i=0; i<num_threads; i++) {
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| 215 | state = &states[i];
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| 216 |
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| 217 | state->p = pools[poolnum];
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| 218 | poolnum = (poolnum + 1) % num_pools;
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| 219 |
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| 220 | state->num_jobs = num_jobs;
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| 221 | state->timeout = 1;
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| 222 | state->start_job = i * num_jobs;
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| 223 |
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| 224 | ret = pthread_create(&state->tid, NULL, test_threaded_worker,
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| 225 | state);
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| 226 | if (ret != 0) {
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| 227 | fprintf(stderr, "pthread_create failed: %s\n",
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| 228 | strerror(ret));
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| 229 | return -1;
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| 230 | }
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| 231 | }
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| 232 |
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| 233 | if (random() % 1) {
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| 234 | poll(NULL, 0, 1);
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| 235 | }
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| 236 |
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| 237 | child = fork();
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| 238 | if (child < 0) {
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| 239 | fprintf(stderr, "fork failed: %s\n", strerror(errno));
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| 240 | return -1;
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| 241 | }
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| 242 | if (child == 0) {
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| 243 | for (i=0; i<num_pools; i++) {
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| 244 | ret = pthreadpool_destroy(pools[i]);
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| 245 | if (ret != 0) {
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| 246 | fprintf(stderr, "pthreadpool_destroy failed: "
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| 247 | "%s\n", strerror(ret));
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| 248 | exit(1);
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| 249 | }
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| 250 | }
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| 251 | /* child */
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| 252 | exit(0);
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| 253 | }
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| 254 |
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| 255 | for (i=0; i<num_threads; i++) {
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| 256 | ret = pthread_join(states[i].tid, NULL);
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| 257 | if (ret != 0) {
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| 258 | fprintf(stderr, "pthread_join(%d) failed: %s\n",
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| 259 | i, strerror(ret));
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| 260 | return -1;
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| 261 | }
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| 262 | }
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| 263 |
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| 264 | received = 0;
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| 265 |
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| 266 | while (received < num_threads*num_jobs) {
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| 267 | int j;
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| 268 |
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| 269 | ret = poll(pfds, num_pools, 1000);
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| 270 | if (ret == -1) {
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| 271 | fprintf(stderr, "poll failed: %s\n",
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| 272 | strerror(errno));
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| 273 | return -1;
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| 274 | }
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| 275 | if (ret == 0) {
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| 276 | fprintf(stderr, "\npoll timed out\n");
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| 277 | break;
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| 278 | }
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| 279 |
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| 280 | for (j=0; j<num_pools; j++) {
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| 281 | int jobid = -1;
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| 282 |
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| 283 | if ((pfds[j].revents & (POLLIN|POLLHUP)) == 0) {
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| 284 | continue;
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| 285 | }
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| 286 |
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| 287 | ret = pthreadpool_finished_jobs(pools[j], &jobid, 1);
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| 288 | if ((ret != 1) || (jobid >= num_jobs * num_threads)) {
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| 289 | fprintf(stderr, "invalid job number %d\n",
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| 290 | jobid);
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| 291 | return -1;
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| 292 | }
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| 293 | finished[jobid] += 1;
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| 294 | received += 1;
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| 295 | }
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| 296 | }
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| 297 |
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| 298 | for (i=0; i<num_threads*num_jobs; i++) {
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| 299 | if (finished[i] != 1) {
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| 300 | fprintf(stderr, "finished[%d] = %d\n",
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| 301 | i, finished[i]);
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| 302 | return -1;
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| 303 | }
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| 304 | }
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| 305 |
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| 306 | for (i=0; i<num_pools; i++) {
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| 307 | ret = pthreadpool_destroy(pools[i]);
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| 308 | if (ret != 0) {
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| 309 | fprintf(stderr, "pthreadpool_destroy failed: %s\n",
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| 310 | strerror(ret));
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| 311 | return -1;
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| 312 | }
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| 313 | }
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| 314 |
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| 315 | free(pfds);
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| 316 | free(pools);
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| 317 | free(states);
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| 318 | free(finished);
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| 319 |
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| 320 | return 0;
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| 321 | }
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| 322 |
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| 323 | static int test_fork(void)
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| 324 | {
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| 325 | struct pthreadpool *p;
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| 326 | pid_t child, waited;
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| 327 | int status, ret;
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| 328 |
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| 329 | ret = pthreadpool_init(1, &p);
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| 330 | if (ret != 0) {
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| 331 | fprintf(stderr, "pthreadpool_init failed: %s\n",
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| 332 | strerror(ret));
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| 333 | return -1;
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| 334 | }
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| 335 | ret = pthreadpool_destroy(p);
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| 336 | if (ret != 0) {
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| 337 | fprintf(stderr, "pthreadpool_destroy failed: %s\n",
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| 338 | strerror(ret));
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| 339 | return -1;
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| 340 | }
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| 341 |
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| 342 | child = fork();
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| 343 | if (child < 0) {
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| 344 | perror("fork failed");
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| 345 | return -1;
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| 346 | }
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| 347 | if (child == 0) {
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| 348 | exit(0);
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| 349 | }
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| 350 | waited = wait(&status);
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| 351 | if (waited == -1) {
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| 352 | perror("wait failed");
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| 353 | return -1;
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| 354 | }
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| 355 | if (waited != child) {
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| 356 | fprintf(stderr, "expected child %d, got %d\n",
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| 357 | (int)child, (int)waited);
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| 358 | return -1;
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| 359 | }
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| 360 | return 0;
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| 361 | }
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| 362 |
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| 363 | int main(void)
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| 364 | {
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| 365 | int ret;
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| 366 |
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| 367 | ret = test_init();
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| 368 | if (ret != 0) {
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| 369 | fprintf(stderr, "test_init failed\n");
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| 370 | return 1;
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| 371 | }
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| 372 |
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| 373 | ret = test_fork();
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| 374 | if (ret != 0) {
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| 375 | fprintf(stderr, "test_fork failed\n");
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| 376 | return 1;
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| 377 | }
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| 378 |
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| 379 | ret = test_jobs(10, 10000);
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| 380 | if (ret != 0) {
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| 381 | fprintf(stderr, "test_jobs failed\n");
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| 382 | return 1;
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| 383 | }
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| 384 |
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| 385 | ret = test_busydestroy();
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| 386 | if (ret != 0) {
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| 387 | fprintf(stderr, "test_busydestroy failed\n");
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| 388 | return 1;
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| 389 | }
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| 390 |
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| 391 | /*
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| 392 | * Test 10 threads adding jobs on a single pool
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| 393 | */
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| 394 | ret = test_threaded_addjob(1, 10, 5, 5000);
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| 395 | if (ret != 0) {
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| 396 | fprintf(stderr, "test_jobs failed\n");
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| 397 | return 1;
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| 398 | }
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| 399 |
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| 400 | /*
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| 401 | * Test 10 threads on 3 pools to verify our fork handling
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| 402 | * works right.
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| 403 | */
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| 404 | ret = test_threaded_addjob(3, 10, 5, 5000);
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| 405 | if (ret != 0) {
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| 406 | fprintf(stderr, "test_jobs failed\n");
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| 407 | return 1;
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| 408 | }
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| 409 |
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| 410 | printf("success\n");
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| 411 | return 0;
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| 412 | }
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