Hash :
17752a6c
Author :
Thomas de Grivel
Date :
2020-03-04T14:03:48
Downgrade to C89 = ANSI C
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/*
* Copyright 2018 Thomas de Grivel <thoxdg@gmail.com> +33614550127
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <assert.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "cli.h"
#include "symbol.h"
#include "rtbuf.h"
#include "rtbuf_lib.h"
#include "rtbuf_var.h"
s_cli g_cli;
pthread_t g_rtbuf_cli_thread = 0;
int rtbuf_cli_libs (int argc, const char *argv[])
{
unsigned int i = 0;
unsigned int n = g_rtbuf_lib_alloc.n - g_rtbuf_lib_alloc.free_n;
assert(argc == 0);
(void) argv;
printf("Listing %i libraries :\n", n);
while (i < g_rtbuf_lib_alloc.n && n > 0) {
if (g_rtbuf_lib[i].path[0]) {
rtbuf_lib_print(i);
n--;
}
i++;
}
return 0;
}
int rtbuf_cli_lib (int argc, const char *argv[])
{
int i;
if (argc != 1)
return rtbuf_err("usage: lib LIBRARY");
i = rtbuf_lib_find(argv[1]);
if (0 <= i && i < RTBUF_LIB_MAX) {
rtbuf_lib_print_long(i);
return 0;
}
return rtbuf_err("library not found");
}
int rtbuf_cli_load (int argc, const char *argv[])
{
s_rtbuf_lib *lib;
unsigned int i;
assert(argc == 1);
lib = rtbuf_lib_load(argv[1]);
if (!lib) {
printf("load failed\n");
return -1;
}
i = ((char*) lib - (char*) g_rtbuf_lib) / sizeof(s_rtbuf_lib);
rtbuf_lib_print(i);
return 0;
}
int rtbuf_cli_buffers (int argc, const char *argv[])
{
unsigned int i = 0;
unsigned int n = g_rtbuf_alloc.n;
assert(argc == 0);
(void) argv;
printf("Listing %i buffers :\n", n);
while (i < RTBUF_MAX && n > 0) {
if (g_rtbuf[i].data) {
rtbuf_print_long(i);
printf("\n");
n--;
}
i++;
}
return 0;
}
int rtbuf_cli_buffer (int argc, const char *argv[])
{
int i;
if (argc != 1)
return rtbuf_err("usage: buffer N");
if ((i = rtbuf_find(argv[1])) < 0)
return rtbuf_err("buffer not found");
rtbuf_print_long(i);
return 0;
}
int rtbuf_cli_new (int argc, const char *argv[])
{
int rl;
int rf;
int rtb;
if (argc != 2)
return rtbuf_err("usage: new LIBRARY PROCEDURE");
if ((rl = rtbuf_lib_find(argv[1])) < 0)
return rtbuf_err("library not found");
if ((rf = rtbuf_lib_find_proc(&g_rtbuf_lib[rl], argv[2])) < 0)
return rtbuf_err("procedure not found");
if ((rtb = rtbuf_new(g_rtbuf_lib[rl].proc[rf])) < 0)
return rtbuf_err("buffer not created");
rtbuf_print(rtb);
printf("\n");
return 0;
}
int rtbuf_cli_set (int argc, const char *argv[])
{
s_rtbuf_var *v;
if (argc < 4 || argv[2][0] != '=' || argv[2][1])
return rtbuf_err("usage: set VAR = TYPE ARG [...]");
if (strncmp("new", argv[3], 4) == 0) {
int rl;
int rf;
int rtb;
if (argc != 5)
return rtbuf_err("usage: set VAR = new LIB PROC");
if ((rl = rtbuf_lib_find(argv[4])) < 0)
return rtbuf_err("library not found");
if ((rf = rtbuf_lib_find_proc(&g_rtbuf_lib[rl], argv[5])) < 0)
return rtbuf_err("procedure not found");
if ((rtb = rtbuf_new(g_rtbuf_lib[rl].proc[rf])) < 0)
return rtbuf_err("buffer not created");
v = rtbuf_var_rtbuf_set(argv[1], rtb);
assert(v);
rtbuf_var_print(v);
printf("\n");
return 0;
}
else if (strncmp("buffer", argv[3], 7) == 0) {
int rtb;
if (argc != 4)
return rtbuf_err("usage: set VAR = buffer N");
if ((rtb = rtbuf_find(argv[4])) < 0)
return rtbuf_err("buffer not found");
v = rtbuf_var_rtbuf_set(argv[1], rtb);
assert(v);
rtbuf_var_print(v);
return 0;
}
return rtbuf_err("unknown type for set");
}
int rtbuf_cli_delete (int argc, const char *argv[])
{
int i;
if (argc != 1)
return rtbuf_err("usage: delete N");
i = rtbuf_find(argv[1]);
if (i < 0)
return rtbuf_err("buffer not found\n");
rtbuf_delete(&g_rtbuf[i]);
rtbuf_print(i);
printf("\n");
return 0;
}
int rtbuf_cli_bind (int argc, const char *argv[])
{
int src;
int out;
int dest;
int in;
if (argc != 4)
return rtbuf_err("usage: bind SOURCE OUT DEST IN");
if ((src = rtbuf_find(argv[1])) < 0)
return rtbuf_err("source buffer not found");
if ((out = rtbuf_out_find(&g_rtbuf[src], argv[2])) < 0)
return rtbuf_err("output not found");
if ((dest = rtbuf_find(argv[3])) < 0)
return rtbuf_err("destination buffer not found");
if ((in = rtbuf_in_find(&g_rtbuf[dest], argv[4])) < 0)
return rtbuf_err("input not found");
rtbuf_bind(src, out, &g_rtbuf[dest], in);
rtbuf_print_long(dest);
return 0;
}
int rtbuf_cli_unbind (int argc, const char *argv[])
{
int rtb;
if (argc < 1 || argc > 2)
return rtbuf_err("usage: unbind BUFFER [INPUT]");
if ((rtb = rtbuf_find(argv[1])) < 0)
return rtbuf_err("buffer not found");
if (argc == 2) {
int in = atoi(argv[2]);
if (in < 0 || (unsigned int) in >= g_rtbuf[rtb].proc->in_n)
return rtbuf_err("input not found");
rtbuf_in_unbind(&g_rtbuf[rtb], in);
}
else
rtbuf_unbind_all(&g_rtbuf[rtb]);
rtbuf_print_long(rtb);
return 0;
}
void * rtbuf_cli_thread_proc (void *arg)
{
(void) arg;
printf("rtbuf thread: start\n");
if (!rtbuf_start())
g_rtbuf_run = 1;
while (g_rtbuf_run) {
if (rtbuf_run())
g_rtbuf_run = 0;
}
printf("rtbuf thread: stop\n");
rtbuf_stop();
return 0;
}
int rtbuf_cli_start (int argc, const char *argv[])
{
(void) argv;
if (argc != 0)
return rtbuf_err("usage: start");
if (!g_rtbuf_run && g_rtbuf_cli_thread) {
if (pthread_join(g_rtbuf_cli_thread, 0))
return rtbuf_err("pthread_join failed");
g_rtbuf_cli_thread = 0;
}
if (!g_rtbuf_cli_thread) {
if (pthread_create(&g_rtbuf_cli_thread, 0, &rtbuf_cli_thread_proc,
0))
return rtbuf_err("pthread_create failed");
}
return 0;
}
int rtbuf_cli_stop (int argc, const char *argv[])
{
(void) argv;
if (argc != 0)
return rtbuf_err("usage: stop");
if (g_rtbuf_run)
g_rtbuf_run = 0;
if (g_rtbuf_cli_thread) {
if (pthread_join(g_rtbuf_cli_thread, 0))
return rtbuf_err("pthread_join failed");
g_rtbuf_cli_thread = 0;
}
return 0;
}
int rtbuf_cli_help (int argc, const char *argv[])
{
(void) argc;
(void) argv;
printf("Available commands :\n"
" libs List loaded libraries.\n"
" lib N Show library N.\n"
" load PATH Load library at PATH.\n"
" buffers List buffers.\n"
" buffer N Show buffer N.\n"
" set VAR = buffer N Set variable.\n");
printf(" new LIB PROC Instanciate library procedure.\n"
" set VAR = new LIB PROC Set variable.\n"
" delete BUFFER Unlink and delete RTBUF.\n"
" bind SOURCE OUT DEST IN Bind SOURCE OUT to DEST IN.\n"
" unbind BUFFER IN Unbind BUFFER IN.\n"
" help Show this help message.\n"
" exit Quit RTBUF.\n");
return 0;
}
int rtbuf_cli_exit (int argc, const char *argv[])
{
(void) argc;
(void) argv;
rtbuf_cli_stop(0, 0);
close(0);
exit(0);
return 0;
}
s_cli_function rtbuf_cli_functions[] = {
{ "libs", 0, rtbuf_cli_libs },
{ "lib", 1, rtbuf_cli_lib },
{ "load", 1, rtbuf_cli_load },
{ "buffers", 0, rtbuf_cli_buffers },
{ "buffer", 1, rtbuf_cli_buffer },
{ "new", 2, rtbuf_cli_new },
{ "delete", 1, rtbuf_cli_delete },
{ "bind", 4, rtbuf_cli_bind },
{ "unbind", 1, rtbuf_cli_unbind },
{ "unbind", 2, rtbuf_cli_unbind },
{ "set", -1, rtbuf_cli_set },
{ "start", 0, rtbuf_cli_start },
{ "stop", 0, rtbuf_cli_stop },
{ "h", 0, rtbuf_cli_help },
{ "help", 0, rtbuf_cli_help },
{ "exit", 0, rtbuf_cli_exit },
{ 0, 0, 0 }
};
void debug_read (int argc, const char **argv, f_cli f)
{
union {
f_cli f;
void *p;
} fp;
if (argc < 1)
return;
printf("CLI READ %i %s(", argc, *argv);
argv++;
argc--;
fp.f = f;
while (1) {
if (argc < 1) {
printf("); %p\n", fp.p);
return;
}
printf("%s", *argv);
if (argc > 1)
printf(", ");
argv++;
argc--;
}
}
void repl_init ()
{
cli_init(&g_cli);
cli_prompt(&g_cli, "rtbuf> ");
cli_functions(&g_cli, rtbuf_cli_functions);
}
int load (const char *path)
{
FILE *fp = fopen(path, "r");
if (!fp)
return -1;
printf("; Loading %s\n", path);
while (cli_read_file(&g_cli, fp) >= 0)
cli_eval(&g_cli);
fclose(fp);
return 0;
}
int repl ()
{
while (cli_read(&g_cli) >= 0) {
/* debug_read(cli.argc, cli.argv, cli.f); */
cli_eval(&g_cli);
}
return 0;
}
void rtbuf_cli_args (int argc, char *argv[])
{
while (--argc) {
char *arg = *++argv;
printf("loading script %s\n", arg);
load(arg);
}
}
int main (int argc, char *argv[])
{
symbols_init();
librtbuf_init();
repl_init();
rtbuf_cli_args(argc, argv);
return repl();
}
extern int rtbuf_err (const char *msg)
{
fprintf(stderr, "%s\n", msg);
return -1;
}