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mpv/m_config.c

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#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#ifdef MP_DEBUG
#include <assert.h>
#endif
#include "m_config.h"
#include "m_option.h"
#include "mp_msg.h"
#include "help_mp.h"
m_config_t*
m_config_new(void) {
m_config_t* config;
config = (m_config_t*)calloc(1,sizeof(m_config_t));
config->lvl = 1; // 0 Is the defaults
return config;
}
void
m_config_free(m_config_t* config) {
m_config_option_t *i = config->opts, *ct;
m_config_save_slot_t *sl,*st;
#ifdef MP_DEBUG
assert(config != NULL);
#endif
while(i) {
if (i->flags & M_CFG_OPT_ALIAS)
sl = NULL;
else
sl = i->slots;
while(sl) {
m_option_free(i->opt,sl->data);
st = sl->prev;
free(sl);
sl = st;
}
if(i->name != i->opt->name)
free(i->name);
ct = i->next;
free(i);
i = ct;
}
free(config);
}
void
m_config_push(m_config_t* config) {
m_config_option_t *co;
m_config_save_slot_t *slot;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 0);
#endif
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->opt->flags & M_OPT_OLD) && !(co->flags && M_CFG_OPT_SET))
continue;
if(co->flags & M_CFG_OPT_ALIAS)
continue;
// Update the current status
m_option_save(co->opt,co->slots->data,co->opt->p);
// Allocate a new slot
slot = (m_config_save_slot_t*)calloc(1,sizeof(m_config_save_slot_t) + 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(m_config_t* config) {
m_config_option_t *co;
m_config_save_slot_t *slot;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 1);
#endif
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,MSGTR_SaveSlotTooOld,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;
free(slot);
pop++;
}
if(pop) // We removed some ctx -> set the previous value
m_option_set(co->opt,co->opt->p,co->slots->data);
}
config->lvl--;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Config poped level=%d\n",config->lvl);
}
static void
m_config_add_option(m_config_t *config, m_option_t *arg, char* prefix) {
m_config_option_t *co;
m_config_save_slot_t* sl;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 0);
assert(arg != NULL);
#endif
// Allocate a new entry for this option
co = (m_config_option_t*)calloc(1,sizeof(m_config_option_t) + arg->type->size);
co->opt = arg;
// Fill in the full name
if(prefix && strlen(prefix) > 0) {
int l = strlen(prefix) + 1 + strlen(arg->name) + 1;
co->name = (char*) malloc(l);
sprintf(co->name,"%s:%s",prefix,arg->name);
} else
co->name = arg->name;
// Option with childs -> add them
if(arg->type->flags & M_OPT_TYPE_HAS_CHILD) {
m_option_t *ol = arg->p;
int i;
co->slots = NULL;
for(i = 0 ; ol[i].name != NULL ; i++)
m_config_add_option(config,&ol[i], co->name);
} else {
m_config_option_t *i;
// Check if there is alredy an option pointing to this address
if(arg->p) {
for(i = config->opts ; i ; i = i->next ) {
if(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 = (m_config_save_slot_t*)calloc(1,sizeof(m_config_save_slot_t) + arg->type->size);
m_option_save(arg,sl->data,(void**)arg->p);
// Hack to avoid too much trouble with dynamicly allocated data :
// We always use a dynamic version
if((arg->type->flags & M_OPT_TYPE_DYNAMIC) && arg->p && (*(void**)arg->p)) {
*(void**)arg->p = NULL;
m_option_set(arg,arg->p,sl->data);
}
sl->lvl = 0;
sl->prev = NULL;
co->slots = (m_config_save_slot_t*)calloc(1,sizeof(m_config_save_slot_t) + arg->type->size);
co->slots->prev = sl;
co->slots->lvl = config->lvl;
m_option_copy(co->opt,co->slots->data,sl->data);
} // !M_OPT_ALIAS
}
co->next = config->opts;
config->opts = co;
}
int
m_config_register_options(m_config_t *config, m_option_t *args) {
int i;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 0);
assert(args != NULL);
#endif
for(i = 0 ; args[i].name != NULL ; i++)
m_config_add_option(config,&args[i],NULL);
return 1;
}
static m_config_option_t*
m_config_get_co(m_config_t *config, char* arg) {
m_config_option_t *co;
for(co = config->opts ; co ; co = co->next ) {
int l = strlen(co->name) - 1;
if((co->opt->type->flags & M_OPT_TYPE_ALLOW_WILDCARD) &&
(co->name[l] == '*')) {
if(strncasecmp(co->name,arg,l) == 0)
return co;
} else if(strcasecmp(co->name,arg) == 0)
return co;
}
return NULL;
}
static int
m_config_parse_option(m_config_t *config, char* arg, char* param,int set) {
m_config_option_t *co;
int r = 0;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 0);
assert(arg != NULL);
#endif
co = m_config_get_co(config,arg);
if(!co){
// mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Unknown option: %s\n",arg);
return M_OPT_UNKNOWN;
}
#ifdef MP_DEBUG
// This is the only mandatory function
assert(co->opt->type->parse);
#endif
// Check if this option isn't forbiden in the current mode
if((config->mode == M_CONFIG_FILE) && (co->opt->flags & M_OPT_NOCFG)) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR,MSGTR_InvalidCfgfileOption,arg);
return M_OPT_INVALID;
}
if((config->mode == M_COMMAND_LINE) && (co->opt->flags & M_OPT_NOCMD)) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR,MSGTR_InvalidCmdlineOption,arg);
return M_OPT_INVALID;
}
// Option with childs 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,arg,param,&lst,M_COMMAND_LINE);
// 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,n,lst[2*i+1],set);
if(sr < 0){
if(sr == M_OPT_UNKNOWN){
mp_msg(MSGT_CFGPARSER, MSGL_ERR,MSGTR_InvalidSuboption,co->name,lst[2*i]);
r = M_OPT_INVALID;
} else
if(sr == M_OPT_MISSING_PARAM){
mp_msg(MSGT_CFGPARSER, MSGL_ERR,MSGTR_MissingSuboptionParameter,lst[2*i],co->name);
r = M_OPT_INVALID;
} else
r = sr;
}
}
free(lst[2*i]);
free(lst[2*i+1]);
}
if(lst) free(lst);
} else
r = m_option_parse(co->opt,arg,param,set ? co->slots->data : NULL,config->mode);
// Parsing failed ?
if(r < 0)
return r;
// Set the option
if(set) {
m_option_set(co->opt,co->opt->p,co->slots->data);
co->flags |= M_CFG_OPT_SET;
}
return r;
}
int
m_config_set_option(m_config_t *config, char* arg, char* param) {
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Setting %s=%s\n",arg,param);
return m_config_parse_option(config,arg,param,1);
}
int
m_config_check_option(m_config_t *config, char* arg, char* param) {
int r;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Checking %s=%s\n",arg,param);
r=m_config_parse_option(config,arg,param,0);
if(r==M_OPT_MISSING_PARAM){
mp_msg(MSGT_CFGPARSER, MSGL_ERR,MSGTR_MissingOptionParameter,arg);
return M_OPT_INVALID;
}
return r;
}
m_option_t*
m_config_get_option(m_config_t *config, char* arg) {
m_config_option_t *co;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->lvl > 0);
assert(arg != NULL);
#endif
co = m_config_get_co(config,arg);
if(co)
return co->opt;
else
return NULL;
}
void*
m_config_get_option_ptr(m_config_t *config, char* arg) {
m_option_t* conf;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
conf = m_config_get_option(config,arg);
if(!conf) return NULL;
return conf->p;
}
void
m_config_print_option_list(m_config_t *config) {
char min[50],max[50];
m_config_option_t* co;
int count = 0;
if(!config->opts) return;
mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_OptionListHeader);
for(co = config->opts ; co ; co = co->next) {
m_option_t* 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_FIXME, MSGL_FIXME, " %-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_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_TotalOptions,count);
}