netsurf/monkey/dispatch.c
Vincent Sanders c105738fa3 Change LOG() macro to be varadic
This changes the LOG macro to be varadic removing the need for all
callsites to have double bracketing and allows for future improvement
on how we use the logging macros.

The callsites were changed with coccinelle and the changes checked by
hand. Compile tested for several frontends but not all.

A formatting annotation has also been added which allows the compiler
to check the parameters and types passed to the logging.
2015-05-28 16:08:46 +01:00

106 lines
2.5 KiB
C

/*
* Copyright 2011 Daniel Silverstone <dsilvers@digital-scurf.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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 <limits.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "utils/log.h"
#include "utils/utils.h"
#include "utils/ring.h"
#include "monkey/dispatch.h"
typedef struct cmdhandler {
struct cmdhandler *r_next, *r_prev;
const char *cmd;
handle_command_fn fn;
} monkey_cmdhandler_t;
static monkey_cmdhandler_t *handler_ring = NULL;
nserror
monkey_register_handler(const char *cmd, handle_command_fn fn)
{
monkey_cmdhandler_t *ret = calloc(sizeof(*ret), 1);
if (ret == NULL) {
LOG("Unable to allocate handler");
return NSERROR_NOMEM;
}
ret->cmd = strdup(cmd);
ret->fn = fn;
RING_INSERT(handler_ring, ret);
return NSERROR_OK;
}
void
monkey_process_command(void)
{
char buffer[PATH_MAX];
int argc = 0;
char **argv = NULL;
char *p, *r = NULL;
handle_command_fn fn = NULL;
char **nargv;
if (fgets(buffer, PATH_MAX, stdin) == NULL) {
/* end of input or read error so issue QUIT */
sprintf(buffer, "QUIT\n");
}
/* remove newline */
buffer[strlen(buffer) - 1] = '\0';
argv = malloc(sizeof *argv);
if (argv == NULL) {
return;
}
argc = 1;
*argv = buffer;
for (p = r = buffer; *p != '\0'; p++) {
if (*p == ' ') {
nargv = realloc(argv, sizeof(*argv) * (argc + 1));
if (nargv == NULL) {
/* reallocation of argument vector failed, try using what is
* already processed.
*/
break;
} else {
argv = nargv;
}
argv[argc++] = r = p + 1;
*p = '\0';
}
}
RING_ITERATE_START(monkey_cmdhandler_t, handler_ring, handler) {
if (strcmp(argv[0], handler->cmd) == 0) {
fn = handler->fn;
RING_ITERATE_STOP(handler_ring, handler);
}
} RING_ITERATE_END(handler_ring, handler);
if (fn != NULL) {
fn(argc, argv);
}
free(argv);
}