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/*
comm tests
Copyright (C) Amitay Isaacs 2015
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/filesys.h"
#include <assert.h>
#include "common/pkt_read.c"
#include "common/pkt_write.c"
#include "common/comm.c"
struct writer_state {
struct tevent_context *ev;
struct comm_context *comm;
uint8_t *buf;
size_t *pkt_size;
size_t count, id;
};
static void writer_done(struct tevent_req *subreq);
static void read_handler(uint8_t *buf, size_t buflen, void *private_data);
static void dead_handler(void *private_data);
static struct tevent_req *writer_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
int fd, size_t *pkt_size,
size_t count)
{
struct tevent_req *req, *subreq;
struct writer_state *state;
size_t max_size = 0, buflen;
size_t i;
int ret;
for (i=0; i<count; i++) {
if (pkt_size[i] > max_size) {
max_size = pkt_size[i];
}
}
req = tevent_req_create(mem_ctx, &state, struct writer_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->pkt_size = pkt_size;
state->count = count;
state->id = 0;
ret = comm_setup(state, ev, fd, read_handler, req,
dead_handler, req, &state->comm);
if (ret != 0) {
tevent_req_error(req, ret);
return tevent_req_post(req, ev);
}
state->buf = talloc_array(state, uint8_t, max_size);
if (state->buf == NULL) {
talloc_free(req);
return NULL;
}
for (i=0; i<max_size; i++) {
state->buf[i] = i%256;
}
buflen = state->pkt_size[state->id];
*(uint32_t *)state->buf = buflen;
subreq = comm_write_send(state, state->ev, state->comm,
state->buf, buflen);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, writer_done, req);
return req;
}
static void writer_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
bool ret;
int err;
ret = comm_write_recv(subreq, &err);
TALLOC_FREE(subreq);
if (!ret) {
tevent_req_error(req, err);
return;
}
}
static void read_handler(uint8_t *buf, size_t buflen, void *private_data)
{
struct tevent_req *req = talloc_get_type_abort(
private_data, struct tevent_req);
struct writer_state *state = tevent_req_data(
req, struct writer_state);
struct tevent_req *subreq;
if (buflen != state->pkt_size[state->id]) {
tevent_req_error(req, EIO);
return;
}
state->id++;
if (state->id >= state->count) {
tevent_req_done(req);
return;
}
buflen = state->pkt_size[state->id];
*(uint32_t *)state->buf = buflen;
subreq = comm_write_send(state, state->ev, state->comm,
state->buf, buflen);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, writer_done, req);
}
static void dead_handler(void *private_data)
{
struct tevent_req *req = talloc_get_type_abort(
private_data, struct tevent_req);
tevent_req_error(req, EPIPE);
}
static void writer_recv(struct tevent_req *req, int *perr)
{
if (tevent_req_is_unix_error(req, perr)) {
return;
}
*perr = 0;
}
static int socket_init(char *sockpath)
{
struct sockaddr_un addr;
int fd, ret, i;
size_t len;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
len = strlcpy(addr.sun_path, sockpath, sizeof(addr.sun_path));
assert(len < sizeof(addr.sun_path));
fd = socket(AF_UNIX, SOCK_STREAM, 0);
assert(fd != -1);
for (i=0; i<5; i++) {
ret = connect(fd, (struct sockaddr *)&addr, sizeof(addr));
if (ret == 0) {
break;
}
sleep(1);
}
assert(ret != -1);
return fd;
}
int main(int argc, char *argv[])
{
TALLOC_CTX *mem_ctx;
struct tevent_context *ev;
struct tevent_req *req;
int fd;
size_t pkt_size[13] = { 100, 2048, 500, 4096, 1024, 8192,
200, 16384, 300, 32768, 400, 65536,
1024*1024 };
int err;
if (argc != 2) {
printf("Usage: %s <sockpath>\n", argv[0]);
exit(1);
}
mem_ctx = talloc_new(NULL);
assert(mem_ctx != NULL);
ev = tevent_context_init(mem_ctx);
assert(ev != NULL);
fd = socket_init(argv[1]);
req = writer_send(mem_ctx, ev, fd, pkt_size, 13);
assert(req != NULL);
tevent_req_poll(req, ev);
writer_recv(req, &err);
assert(err == 0);
exit(0);
}
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