mirror of https://github.com/mpv-player/mpv
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
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/// \file
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/// \ingroup OptionsStruct
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include "m_option.h"
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#include "m_struct.h"
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#include "mp_msg.h"
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const m_option_t*
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m_struct_get_field(const m_struct_t* st,const char* f) {
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int i;
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for(i = 0 ; st->fields[i].name ; i++) {
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if(strcasecmp(st->fields[i].name,f) == 0)
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return &st->fields[i];
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}
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return NULL;
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}
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void*
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m_struct_alloc(const m_struct_t* st) {
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int i;
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void* r;
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if(!st->defaults) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s needs defaults\n",st->name);
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return NULL;
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}
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// Check the struct fields
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for(i = 0 ; st->fields[i].name ; i++) {
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if(st->fields[i].type->flags & M_OPT_TYPE_INDIRECT) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s->%s: Option types with the indirect flag are forbidden.\n",st->name,st->fields[i].name);
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return NULL;
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}
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}
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r = calloc(1,st->size);
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memcpy(r,st->defaults,st->size);
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for(i = 0 ; st->fields[i].name ; i++) {
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if(st->fields[i].type->flags & M_OPT_TYPE_DYNAMIC)
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memset(M_ST_MB_P(r,st->fields[i].p),0,st->fields[i].type->size);
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m_option_copy(&st->fields[i],M_ST_MB_P(r,st->fields[i].p),M_ST_MB_P(st->defaults,st->fields[i].p));
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}
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return r;
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}
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int
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m_struct_set(const m_struct_t* st, void* obj, char* field, char* param) {
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const m_option_t* f = m_struct_get_field(st,field);
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if(!f) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s doesn't have any %s field\n",
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st->name,field);
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return 0;
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}
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if(f->type->parse(f,field,param,M_ST_MB_P(obj,f->p),M_CONFIG_FILE) < 0) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s, field %s parsing error: %s\n",
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st->name,field,param);
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return 0;
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}
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return 1;
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}
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void
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m_struct_reset(const m_struct_t* st, void* obj, const char* field) {
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const m_option_t* f;
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if(!field) { // Reset all options
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int i;
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for(i = 0 ; st->fields[i].name ; i++)
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m_option_copy(&st->fields[i],M_ST_MB_P(obj,st->fields[i].p),M_ST_MB_P(st->defaults,st->fields[i].p));
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return;
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}
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// Only one
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f = m_struct_get_field(st,field);
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if(!f) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Struct %s doesn't have any %s field\n",
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st->name,field);
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return;
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}
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m_option_copy(f,M_ST_MB_P(obj,f->p),M_ST_MB_P(st->defaults,f->p));
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}
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/// Free an allocated struct
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void
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m_struct_free(const m_struct_t* st, void* obj) {
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int i;
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for(i = 0 ; st->fields[i].name ; i++)
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m_option_free(&st->fields[i],M_ST_MB_P(obj,st->fields[i].p));
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free(obj);
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}
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void*
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m_struct_copy(const m_struct_t* st, void* obj) {
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void* r = malloc(st->size);
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int i;
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memcpy(r,obj,st->size);
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for(i = 0 ; st->fields[i].name ; i++) {
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if(st->fields[i].type->flags & M_OPT_TYPE_DYNAMIC)
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memset(M_ST_MB_P(r,st->fields[i].p),0,st->fields[i].type->size);
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m_option_copy(&st->fields[i],M_ST_MB_P(r,st->fields[i].p),M_ST_MB_P(obj,st->fields[i].p));
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}
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return r;
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}
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