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https://github.com/uselessd/alcove.git
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9d30aecd29
Convert alcove to a select loop. Each process can call the commands. fork(2) and clone(2) are now just commands.
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* Copyright (c) 2014, Michael Santos <michael.santos@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define _GNU_SOURCE
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#include <sched.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <signal.h>
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#include <erl_driver.h>
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#include <erl_interface.h>
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#include "erl_errno.h"
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#include "alcove_version.h"
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enum {
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alcove_opt_daemonize = 1 << 0, /* Run the process as a daemon */
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alcove_opt_closeallfds = 1 << 1, /* Close fd's associated with the process */
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};
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typedef struct {
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u_int32_t opt;
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u_int8_t verbose;
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int fdin;
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int fdout;
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int fderr;
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} alcove_state_t;
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typedef struct {
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u_int32_t cmd;
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unsigned char *arg;
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} alcove_msg_t;
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void gotsig(int sig);
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void alcove_ctl(alcove_state_t *ap);
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void *alcove_malloc(ssize_t size);
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ETERM *alcove_list_head(ETERM **, ETERM *);
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ETERM *alcove_tuple2(ETERM *, ETERM *);
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ETERM *alcove_tuple3(ETERM *, ETERM *, ETERM *);
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ETERM *alcove_errno(int);
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ETERM *alcove_error(const char *);
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ETERM *alcove_ok(ETERM *);
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ETERM *alcove_bool(bool);
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ETERM *alcove_bin(const char *);
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ETERM *alcove_cmd(alcove_state_t *, u_int32_t, ETERM *);
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#define VERBOSE(x, ...) do { \
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if (ap->verbose >= x) { \
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erl_err_msg(__VA_ARGS__); \
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} \
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} while (0)
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