RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/m_config.c

655 lines
21 KiB
C
Raw Blame History

/*
* This file is part of MPlayer.
*
* MPlayer 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 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/// \file
/// \ingroup Config
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include "talloc.h"
#include "m_config.h"
#include "m_option.h"
#include "mp_msg.h"
#define MAX_PROFILE_DEPTH 20
static int parse_profile(const struct m_option *opt, struct bstr name,
struct bstr param, bool ambiguous_param, void *dst)
{
struct m_config *config = opt->priv;
char **list = NULL;
int i, r;
if (!bstrcmp0(param, "help")) {
struct m_profile *p;
if (!config->profiles) {
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO,
"No profiles have been defined.\n");
return M_OPT_EXIT - 1;
}
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "Available profiles:\n");
for (p = config->profiles; p; p = p->next)
mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\t%s\t%s\n", p->name,
p->desc ? p->desc : "");
mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
return M_OPT_EXIT - 1;
}
r = m_option_type_string_list.parse(opt, name, param, false, &list);
if (r < 0)
return r;
if (!list || !list[0])
return M_OPT_INVALID;
for (i = 0; list[i]; i++)
if (!m_config_get_profile(config, list[i])) {
mp_tmsg(MSGT_CFGPARSER, MSGL_WARN, "Unknown profile '%s'.\n",
list[i]);
r = M_OPT_INVALID;
}
if (dst)
m_option_copy(opt, dst, &list);
else
m_option_free(opt, &list);
return r;
}
static void set_profile(const struct m_option *opt, void *dst, const void *src)
{
struct m_config *config = opt->priv;
struct m_profile *p;
char **list = NULL;
int i;
if (!src || !*(char ***)src)
return;
m_option_copy(opt, &list, src);
for (i = 0; list[i]; i++) {
p = m_config_get_profile(config, list[i]);
if (!p)
continue;
m_config_set_profile(config, p);
}
m_option_free(opt, &list);
}
static int show_profile(struct m_option *opt, char *name, char *param)
{
struct m_config *config = opt->priv;
struct m_profile *p;
int i, j;
if (!param)
return M_OPT_MISSING_PARAM;
if (!(p = m_config_get_profile(config, param))) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "Unknown profile '%s'.\n", param);
return M_OPT_EXIT - 1;
}
if (!config->profile_depth)
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "Profile %s: %s\n", param,
p->desc ? p->desc : "");
config->profile_depth++;
for (i = 0; i < p->num_opts; i++) {
char spc[config->profile_depth + 1];
for (j = 0; j < config->profile_depth; j++)
spc[j] = ' ';
spc[config->profile_depth] = '\0';
mp_msg(MSGT_CFGPARSER, MSGL_INFO, "%s%s=%s\n", spc,
p->opts[2 * i], p->opts[2 * i + 1]);
if (config->profile_depth < MAX_PROFILE_DEPTH
&& !strcmp(p->opts[2*i], "profile")) {
char *e, *list = p->opts[2 * i + 1];
while ((e = strchr(list, ','))) {
int l = e - list;
char tmp[l+1];
if (!l)
continue;
memcpy(tmp, list, l);
tmp[l] = '\0';
show_profile(opt, name, tmp);
list = e + 1;
}
if (list[0] != '\0')
show_profile(opt, name, list);
}
}
config->profile_depth--;
if (!config->profile_depth)
mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
return M_OPT_EXIT - 1;
}
static int list_options(struct m_option *opt, char *name, char *param)
{
struct m_config *config = opt->priv;
m_config_print_option_list(config);
return M_OPT_EXIT;
}
static void m_option_save(const struct m_config *config,
const struct m_option *opt, void *dst)
{
if (opt->type->save) {
const void *src = m_option_get_ptr(opt, config->optstruct);
opt->type->save(opt, dst, src);
}
}
static void m_option_set(const struct m_config *config,
const struct m_option *opt, const void *src)
{
if (opt->type->set) {
void *dst = m_option_get_ptr(opt, config->optstruct);
opt->type->set(opt, dst, src);
}
}
static void m_config_add_option(struct m_config *config,
const struct m_option *arg,
const char *prefix, char *disabled_feature);
struct m_config *m_config_new(void *optstruct,
int includefunc(struct m_option *conf,
char *filename))
{
struct m_config *config;
static int initialized = 0;
static struct m_option_type profile_opt_type;
static const struct m_option ref_opts[] = {
{ "profile", NULL, &profile_opt_type, CONF_NOSAVE, 0, 0, NULL },
{ "show-profile", show_profile, CONF_TYPE_PRINT_FUNC, CONF_NOCFG },
{ "list-options", list_options, CONF_TYPE_PRINT_FUNC, CONF_NOCFG },
{ NULL }
};
int i;
config = talloc_zero(NULL, struct m_config);
config->lvl = 1; // 0 Is the defaults
if (!initialized) {
initialized = 1;
profile_opt_type = m_option_type_string_list;
profile_opt_type.parse = parse_profile;
profile_opt_type.set = set_profile;
}
struct m_option *self_opts = talloc_memdup(config, ref_opts,
sizeof(ref_opts));
for (i = 0; self_opts[i].name; i++)
self_opts[i].priv = config;
m_config_register_options(config, self_opts);
if (includefunc) {
struct m_option *p = talloc_ptrtype(config, p);
*p = (struct m_option){
"include", includefunc, CONF_TYPE_FUNC_PARAM,
CONF_NOSAVE, 0, 0, config
};
m_config_add_option(config, p, NULL, NULL);
}
config->optstruct = optstruct;
return config;
}
void m_config_free(struct m_config *config)
{
struct m_config_option *copt;
for (copt = config->opts; copt; copt = copt->next) {
if (copt->flags & M_CFG_OPT_ALIAS)
continue;
if (copt->opt->type->flags & M_OPT_TYPE_DYNAMIC) {
void *ptr = m_option_get_ptr(copt->opt, config->optstruct);
if (ptr)
m_option_free(copt->opt, ptr);
}
struct m_config_save_slot *sl;
for (sl = copt->slots; sl; sl = sl->prev)
m_option_free(copt->opt, sl->data);
}
talloc_free(config);
}
void m_config_push(struct m_config *config)
{
struct m_config_option *co;
struct m_config_save_slot *slot;
assert(config != NULL);
assert(config->lvl > 0);
config->lvl++;
for (co = config->opts; co; co = co->next) {
if (co->opt->type->flags & M_OPT_TYPE_HAS_CHILD)
continue;
if (co->opt->flags & (M_OPT_GLOBAL | M_OPT_NOSAVE))
continue;
if (co->flags & M_CFG_OPT_ALIAS)
continue;
// Update the current status
m_option_save(config, co->opt, co->slots->data);
// Allocate a new slot
slot = talloc_zero_size(co, sizeof(struct m_config_save_slot) +
co->opt->type->size);
slot->lvl = config->lvl;
slot->prev = co->slots;
co->slots = slot;
m_option_copy(co->opt, co->slots->data, co->slots->prev->data);
// Reset our set flag
co->flags &= ~M_CFG_OPT_SET;
}
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,
"Config pushed level is now %d\n", config->lvl);
}
void m_config_pop(struct m_config *config)
{
struct m_config_option *co;
struct m_config_save_slot *slot;
assert(config != NULL);
assert(config->lvl > 1);
for (co = config->opts; co; co = co->next) {
int pop = 0;
if (co->opt->type->flags & M_OPT_TYPE_HAS_CHILD)
continue;
if (co->opt->flags & (M_OPT_GLOBAL | M_OPT_NOSAVE))
continue;
if (co->flags & M_CFG_OPT_ALIAS)
continue;
if (co->slots->lvl > config->lvl)
mp_msg(MSGT_CFGPARSER, MSGL_WARN,
"Save slot found from lvl %d is too old: %d !!!\n",
config->lvl, co->slots->lvl);
while (co->slots->lvl >= config->lvl) {
m_option_free(co->opt, co->slots->data);
slot = co->slots;
co->slots = slot->prev;
talloc_free(slot);
pop++;
}
if (pop) // We removed some ctx -> set the previous value
m_option_set(config, co->opt, co->slots->data);
}
config->lvl--;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2, "Config poped level=%d\n", config->lvl);
}
static void add_options(struct m_config *config, const struct m_option *defs,
const char *prefix, char *disabled_feature)
{
char *dis = disabled_feature;
const char marker[] = "conditional functionality: ";
for (int i = 0; defs[i].name; i++) {
if (!strncmp(defs[i].name, marker, strlen(marker))) {
// If a subconfig entry itself is disabled, everything
// under it is already disabled for the same reason.
if (!disabled_feature) {
if (!strcmp(defs[i].name + strlen(marker), "1"))
dis = NULL;
else
dis = defs[i].p;
}
continue;
}
m_config_add_option(config, defs + i, prefix, dis);
}
}
static void m_config_add_option(struct m_config *config,
const struct m_option *arg, const char *prefix,
char *disabled_feature)
{
struct m_config_option *co;
struct m_config_save_slot *sl;
assert(config != NULL);
assert(config->lvl > 0);
assert(arg != NULL);
// Allocate a new entry for this option
co = talloc_zero_size(config,
sizeof(struct m_config_option) + arg->type->size);
co->opt = arg;
co->disabled_feature = disabled_feature;
// Fill in the full name
if (prefix && *prefix)
co->name = talloc_asprintf(co, "%s:%s", prefix, arg->name);
else
co->name = (char *)arg->name;
// Option with children -> add them
if (arg->type->flags & M_OPT_TYPE_HAS_CHILD) {
add_options(config, arg->p, co->name, disabled_feature);
} else {
struct m_config_option *i;
// Check if there is already an option pointing to this address
if (arg->p || arg->new && arg->offset >= 0) {
for (i = config->opts; i; i = i->next) {
if (arg->new ? (i->opt->new && i->opt->offset == arg->offset)
: (!i->opt->new && i->opt->p == arg->p)) {
// So we don't save the same vars more than 1 time
co->slots = i->slots;
co->flags |= M_CFG_OPT_ALIAS;
break;
}
}
}
if (!(co->flags & M_CFG_OPT_ALIAS)) {
// Allocate a slot for the defaults
sl = talloc_zero_size(co, sizeof(struct m_config_save_slot) +
arg->type->size);
m_option_save(config, arg, sl->data);
// Hack to avoid too much trouble with dynamically allocated data:
// We replace original default and always use a dynamic version
if ((arg->type->flags & M_OPT_TYPE_DYNAMIC)) {
char **hackptr = m_option_get_ptr(arg, config->optstruct);
if (hackptr && *hackptr) {
*hackptr = NULL;
m_option_set(config, arg, sl->data);
}
}
sl->lvl = 0;
sl->prev = NULL;
co->slots = talloc_zero_size(co, sizeof(struct m_config_save_slot) +
arg->type->size);
co->slots->prev = sl;
co->slots->lvl = config->lvl;
m_option_copy(co->opt, co->slots->data, sl->data);
}
}
co->next = config->opts;
config->opts = co;
}
int m_config_register_options(struct m_config *config,
const struct m_option *args)
{
assert(config != NULL);
assert(config->lvl > 0);
assert(args != NULL);
add_options(config, args, NULL, NULL);
return 1;
}
static struct m_config_option *m_config_get_co(const struct m_config *config,
struct bstr name)
{
struct m_config_option *co;
for (co = config->opts; co; co = co->next) {
struct bstr coname = bstr(co->name);
if ((co->opt->type->flags & M_OPT_TYPE_ALLOW_WILDCARD)
&& bstr_endswith0(coname, "*")) {
coname.len--;
if (bstrcasecmp(bstr_splice(name, 0, coname.len), coname) == 0)
return co;
} else if (bstrcasecmp(coname, name) == 0)
return co;
}
return NULL;
}
static int m_config_parse_option(const struct m_config *config,
struct bstr name, struct bstr param,
bool ambiguous_param, bool set)
{
struct m_config_option *co;
int r = 0;
assert(config != NULL);
assert(config->lvl > 0);
assert(name.len != 0);
co = m_config_get_co(config, name);
if (!co)
return M_OPT_UNKNOWN;
if (co->disabled_feature) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"Option \"%.*s\" is not available in this version of mplayer2, "
"because it has been compiled with feature \"%s\" disabled.\n",
BSTR_P(name), co->disabled_feature);
return M_OPT_UNKNOWN;
}
// This is the only mandatory function
assert(co->opt->type->parse);
// Check if this option isn't forbidden in the current mode
if ((config->mode == M_CONFIG_FILE) && (co->opt->flags & M_OPT_NOCFG)) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"The %.*s option can't be used in a config file.\n",
BSTR_P(name));
return M_OPT_INVALID;
}
if ((config->mode == M_COMMAND_LINE) && (co->opt->flags & M_OPT_NOCMD)) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"The %.*s option can't be used on the command line.\n",
BSTR_P(name));
return M_OPT_INVALID;
}
// During command line preparse set only pre-parse options
// Otherwise only set pre-parse option if they were not already set.
if (((config->mode == M_COMMAND_LINE_PRE_PARSE) &&
!(co->opt->flags & M_OPT_PRE_PARSE)) ||
((config->mode != M_COMMAND_LINE_PRE_PARSE) &&
(co->opt->flags & M_OPT_PRE_PARSE) && (co->flags & M_CFG_OPT_SET)))
set = 0;
// Option with children are a bit different to parse
if (co->opt->type->flags & M_OPT_TYPE_HAS_CHILD) {
char **lst = NULL;
int i, sr;
// Parse the child options
r = m_option_parse(co->opt, name, param, false, &lst);
// Set them now
if (r >= 0)
for (i = 0; lst && lst[2 * i]; i++) {
int l = strlen(co->name) + 1 + strlen(lst[2 * i]) + 1;
if (r >= 0) {
// Build the full name
char n[l];
sprintf(n, "%s:%s", co->name, lst[2 * i]);
sr = m_config_parse_option(config, bstr(n),
bstr(lst[2 * i + 1]), false,
set);
if (sr < 0) {
if (sr == M_OPT_UNKNOWN) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"Error: option '%s' has no suboption '%s'.\n",
co->name, lst[2 * i]);
r = M_OPT_INVALID;
} else if (sr == M_OPT_MISSING_PARAM) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"Error: suboption '%s' of '%s' must have "
"a parameter!\n", lst[2 * i], co->name);
r = M_OPT_INVALID;
} else
r = sr;
}
}
talloc_free(lst[2 * i]);
talloc_free(lst[2 * i + 1]);
}
talloc_free(lst);
} else
r = m_option_parse(co->opt, name, param, ambiguous_param,
set ? co->slots->data : NULL);
// Parsing failed ?
if (r < 0)
return r;
// Set the option
if (set) {
m_option_set(config, co->opt, co->slots->data);
co->flags |= M_CFG_OPT_SET;
}
return r;
}
int m_config_set_option(struct m_config *config, struct bstr name,
struct bstr param, bool ambiguous_param)
{
mp_msg(MSGT_CFGPARSER, MSGL_DBG2, "Setting %.*s=%.*s\n", BSTR_P(name),
BSTR_P(param));
return m_config_parse_option(config, name, param, ambiguous_param, 1);
}
int m_config_check_option(const struct m_config *config, struct bstr name,
struct bstr param, bool ambiguous_param)
{
int r;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2, "Checking %.*s=%.*s\n", BSTR_P(name),
BSTR_P(param));
r = m_config_parse_option(config, name, param, ambiguous_param, 0);
if (r == M_OPT_MISSING_PARAM) {
mp_tmsg(MSGT_CFGPARSER, MSGL_ERR,
"Error: option '%.*s' must have a parameter!\n", BSTR_P(name));
return M_OPT_INVALID;
}
return r;
}
const struct m_option *m_config_get_option(const struct m_config *config,
struct bstr name)
{
struct m_config_option *co;
assert(config != NULL);
assert(config->lvl > 0);
co = m_config_get_co(config, name);
if (co)
return co->opt;
else
return NULL;
}
void m_config_print_option_list(const struct m_config *config)
{
char min[50], max[50];
struct m_config_option *co;
int count = 0;
if (!config->opts)
return;
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO,
"\n Name Type Min Max Global CL Cfg\n\n");
for (co = config->opts; co; co = co->next) {
const struct m_option *opt = co->opt;
if (opt->type->flags & M_OPT_TYPE_HAS_CHILD)
continue;
if (opt->flags & M_OPT_MIN)
sprintf(min, "%-8.0f", opt->min);
else
strcpy(min, "No");
if (opt->flags & M_OPT_MAX)
sprintf(max, "%-8.0f", opt->max);
else
strcpy(max, "No");
mp_msg(MSGT_CFGPARSER, MSGL_INFO,
" %-20.20s %-15.15s %-10.10s %-10.10s %-3.3s %-3.3s %-3.3s\n",
co->name,
co->opt->type->name,
min,
max,
opt->flags & CONF_GLOBAL ? "Yes" : "No",
opt->flags & CONF_NOCMD ? "No" : "Yes",
opt->flags & CONF_NOCFG ? "No" : "Yes");
count++;
}
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "\nTotal: %d options\n", count);
}
struct m_profile *m_config_get_profile(const struct m_config *config,
char *name)
{
struct m_profile *p;
for (p = config->profiles; p; p = p->next)
if (!strcmp(p->name, name))
return p;
return NULL;
}
struct m_profile *m_config_add_profile(struct m_config *config, char *name)
{
struct m_profile *p = m_config_get_profile(config, name);
if (p)
return p;
p = talloc_zero(config, struct m_profile);
p->name = talloc_strdup(p, name);
p->next = config->profiles;
config->profiles = p;
return p;
}
void m_profile_set_desc(struct m_profile *p, char *desc)
{
talloc_free(p->desc);
p->desc = talloc_strdup(p, desc);
}
int m_config_set_profile_option(struct m_config *config, struct m_profile *p,
char *name, char *val)
{
int i = m_config_check_option0(config, name, val, false);
if (i < 0)
return i;
p->opts = talloc_realloc(p, p->opts, char *, 2 * (p->num_opts + 2));
p->opts[p->num_opts * 2] = talloc_strdup(p, name);
p->opts[p->num_opts * 2 + 1] = talloc_strdup(p, val);
p->num_opts++;
p->opts[p->num_opts * 2] = p->opts[p->num_opts * 2 + 1] = NULL;
return 1;
}
void m_config_set_profile(struct m_config *config, struct m_profile *p)
{
int i;
if (config->profile_depth > MAX_PROFILE_DEPTH) {
mp_tmsg(MSGT_CFGPARSER, MSGL_WARN,
"WARNING: Profile inclusion too deep.\n");
return;
}
int prev_mode = config->mode;
config->mode = M_CONFIG_FILE;
config->profile_depth++;
for (i = 0; i < p->num_opts; i++)
m_config_set_option0(config, p->opts[2 * i], p->opts[2 * i + 1], false);
config->profile_depth--;
config->mode = prev_mode;
}
Reference in New Issue View Git Blame Copy Permalink