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get.c
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get.c
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#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <libmemcached/memcached.h>
int main(int argc, char **argv)
{
struct memcached_st *memc;
struct memcached_server_st *servers;
memcached_return rc;
uint32_t flags;
size_t reslen;
char *server = argv[1];
char *key = argv[2];
char *filename = argv[3];
int fd;
char *res;
if (argc < 4) {
fprintf(stderr, "more args required\n");
return -1;
}
memc = memcached_create(NULL);
servers = memcached_servers_parse(server);
rc = memcached_server_push(memc, servers);
if (rc != MEMCACHED_SUCCESS) {
fprintf(stderr, "memcached_server_push err:%d\n", rc);
goto out;
}
res = memcached_get(memc, key, strlen(key), &reslen, &flags, &rc);
if (rc != MEMCACHED_SUCCESS) {
fprintf(stderr, "memcached_get err:%d\n", rc);
goto out;
}
fd = open(filename, O_RDWR|O_CREAT);
if (fd < 0) {
perror("open");
rc = fd;
goto out;
}
if ((rc = write(fd, res, reslen)) != reslen) {
printf("write:%d\n", rc);
goto out;
}
close(fd);
out:
free(res);
memcached_server_list_free(servers);
memcached_free(memc);
return rc;
}