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/* Gearman server and library
* Copyright (C) 2008 Brian Aker, Eric Day
* All rights reserved.
*
* Use and distribution licensed under the BSD license. See
* the COPYING file in the parent directory for full text.
*/
/**
* @file
* @brief Example Worker
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libgearman/gearman.h>
static void *wc(gearman_job_st *job, void *context, size_t *result_size,
gearman_return_t *ret_ptr);
static void usage(char *name);
int main(int argc, char *argv[])
{
int c;
uint32_t count= 0;
char *host= NULL;
in_port_t port= 0;
gearman_return_t ret;
gearman_worker_st worker;
while ((c = getopt(argc, argv, "c:h:p:")) != -1)
{
switch(c)
{
case 'c':
count= (uint32_t)atoi(optarg);
break;
case 'h':
host= optarg;
break;
case 'p':
port= (in_port_t)atoi(optarg);
break;
default:
usage(argv[0]);
exit(1);
}
}
if (gearman_worker_create(&worker) == NULL)
{
fprintf(stderr, "Memory allocation failure on worker creation\n");
exit(1);
}
ret= gearman_worker_add_server(&worker, host, port);
if (ret != GEARMAN_SUCCESS)
{
fprintf(stderr, "%s\n", gearman_worker_error(&worker));
exit(1);
}
ret= gearman_worker_add_function(&worker, "wc", 0, wc, NULL);
if (ret != GEARMAN_SUCCESS)
{
fprintf(stderr, "%s\n", gearman_worker_error(&worker));
exit(1);
}
while (1)
{
ret= gearman_worker_work(&worker);
if (ret != GEARMAN_SUCCESS)
{
fprintf(stderr, "%s\n", gearman_worker_error(&worker));
break;
}
if (count > 0)
{
count--;
if (count == 0)
break;
}
}
gearman_worker_free(&worker);
return 0;
}
static void *wc(gearman_job_st *job, void *context, size_t *result_size,
gearman_return_t *ret_ptr)
{
const uint8_t *workload;
uint8_t *result;
size_t x;
uint64_t count= 0;
(void)context;
workload= gearman_job_workload(job);
*result_size= gearman_job_workload_size(job);
result= malloc(21); /* Max digits for a 64 bit int. */
if (result == NULL)
{
fprintf(stderr, "malloc:%d\n", errno);
*ret_ptr= GEARMAN_WORK_FAIL;
return NULL;
}
if (workload != NULL)
{
if (workload[0] != ' ' && workload[0] != '\t' && workload[0] != '\n')
count++;
for (x= 0; x < *result_size; x++)
{
if (workload[x] != ' ' && workload[x] != '\t' && workload[x] != '\n')
continue;
count++;
while (workload[x] == ' ' || workload[x] == '\t' || workload[x] == '\n')
{
x++;
if (x == *result_size)
{
count--;
break;
}
}
}
}
snprintf((char *)result, 21, "%" PRIu64, count);
printf("Job=%s Workload=%.*s Result=%s\n", gearman_job_handle(job),
(int)*result_size, workload, result);
*result_size= strlen((char *)result) + 1;
*ret_ptr= GEARMAN_SUCCESS;
return result;
}
static void usage(char *name)
{
printf("\nusage: %s [-h <host>] [-p <port>]\n", name);
printf("\t-h <host> - job server host\n");
printf("\t-p <port> - job server port\n");
}
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