void filter_changesets (database_t * db,
changeset_t ** serial, changeset_t ** serial_end,
const char * filter_command)
{
// Set up a pipeline for running the subprocess and sending the data to it.
struct filter_context context = { db, serial, serial_end };
pipeline * pl = pipeline_new();
pipeline_command (
pl,
pipecmd_new_function ("filter source", filter_output, NULL, &context));
pipeline_command_argstr (pl, filter_command);
pipeline_want_out (pl, -1);
fflush (NULL); // We're forking...
pipeline_start (pl);
filter_input (db, pipeline_get_outfile (pl));
int res = pipeline_wait (pl);
if (res != 0)
fatal ("filter subprocess gave error: %i\n", res);
pipeline_free (pl);
}
int
main(int argc, char **argv)
{
pipeline_t *pl;
char line[1024];
int n;
int i;
int stages;
pipeline_stage_process_pf *stages_proc;
int max_random;
struct timeval start;
struct timeval end;
int start_num = 0;
stages = atoi(argv[1]);
max_random = atoi(argv[2]);
if (argc == 4) {
start_num = atoi(argv[3]);
if (start_num <= 0) {
printf(" usage: test_pipeline <stage_num> <max_random> [start_num]\n");
return 1;
}
}
if (stages<1 || max_random<1) {
printf(" usage: test_pipeline <stage_num> <max_random> [start_num]\n");
return 1;
}
stages_proc = malloc(stages * sizeof(pipeline_stage_process_pf));
for (i = 0; i < stages-1; ++i)
stages_proc[i] = _stage;
stages_proc[stages-1] = _stage_tail;
pl = pipeline_create(stages, stages_proc);
free(stages_proc);
if (start_num == 0)
printf("input an integer, and end with a command named 'q'\n");
while (1) {
if (start_num == 0) {
printf("data> ");
if (fgets(line, sizeof(line), stdin) == NULL)
break;
line[strlen(line)-1] = 0;
if (strcmp(line, "q") == 0)
break;
if (sscanf(line, "%d", &n) != 1) {
printf("please input valid integer\n");
continue;
}
}
// int num = random() % max_random;
g_random_count += max_random;
gettimeofday(&start, NULL);
for (i = max_random; i > 0; --i)
pipeline_start(pl, (void *) (long) (n + i));
pipeline_wait(pl, 0);
gettimeofday(&end, NULL);
test_time("pipeline", &start, &end);
if (start_num != 0)
break;
}
printf("\n\n---------------count is: %d[%d]\n\n", g_count, g_random_count);
assert(g_count == g_random_count);
pipeline_wait(pl, 1);
pipeline_destroy(pl);
return EXIT_SUCCESS;
}
