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nixpkgs/pkgs/development/libraries/libdvdnav/A08-dvdnav-dup.patch

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Index: src/dvdnav.c
===================================================================
--- libdvdnav.orig/src/dvdnav.c (revision 1168)
+++ libdvdnav/src/dvdnav.c (working copy)
@@ -71,6 +71,67 @@
return DVDNAV_STATUS_OK;
}
+dvdnav_status_t dvdnav_dup(dvdnav_t **dest, dvdnav_t *src) {
+ dvdnav_t *this;
+
+ (*dest) = NULL;
+ this = (dvdnav_t*)malloc(sizeof(dvdnav_t));
+ if(!this)
+ return DVDNAV_STATUS_ERR;
+
+ memcpy(this, src, sizeof(dvdnav_t));
+ this->file = NULL;
+
+ pthread_mutex_init(&this->vm_lock, NULL);
+
+ this->vm = vm_new_copy(src->vm);
+ if(!this->vm) {
+ printerr("Error initialising the DVD VM.");
+ pthread_mutex_destroy(&this->vm_lock);
+ free(this);
+ return DVDNAV_STATUS_ERR;
+ }
+
+ /* Start the read-ahead cache. */
+ this->cache = dvdnav_read_cache_new(this);
+
+ (*dest) = this;
+ return DVDNAV_STATUS_OK;
+}
+
+dvdnav_status_t dvdnav_free_dup(dvdnav_t *this) {
+
+#ifdef LOG_DEBUG
+ fprintf(MSG_OUT, "libdvdnav: free_dup:called\n");
+#endif
+
+ if (this->file) {
+ pthread_mutex_lock(&this->vm_lock);
+ DVDCloseFile(this->file);
+#ifdef LOG_DEBUG
+ fprintf(MSG_OUT, "libdvdnav: close:file closing\n");
+#endif
+ this->file = NULL;
+ pthread_mutex_unlock(&this->vm_lock);
+ }
+
+ /* Free the VM */
+ if(this->vm)
+ vm_free_copy(this->vm);
+
+ pthread_mutex_destroy(&this->vm_lock);
+
+ /* We leave the final freeing of the entire structure to the cache,
+ * because we don't know, if there are still buffers out in the wild,
+ * that must return first. */
+ if(this->cache)
+ dvdnav_read_cache_free(this->cache);
+ else
+ free(this);
+
+ return DVDNAV_STATUS_OK;
+}
+
dvdnav_status_t dvdnav_open(dvdnav_t** dest, const char *path) {
dvdnav_t *this;
struct timeval time;
Index: src/dvdnav/dvdnav.h
===================================================================
--- libdvdnav.orig/src/dvdnav/dvdnav.h (revision 1168)
+++ libdvdnav/src/dvdnav.h (working copy)
@@ -89,6 +89,9 @@
*/
dvdnav_status_t dvdnav_open(dvdnav_t **dest, const char *path);
+dvdnav_status_t dvdnav_dup(dvdnav_t **dest, dvdnav_t *src);
+dvdnav_status_t dvdnav_free_dup(dvdnav_t *this);
+
/*
* Closes a dvdnav_t previously opened with dvdnav_open(), freeing any
* memory associated with it.
Index: src/vm/vm.c
===================================================================
--- libdvdnav.orig/src/vm/vm.c (revision 1168)
+++ libdvdnav/src/vm/vm.c (working copy)
@@ -96,6 +98,7 @@
static pgcit_t* get_MENU_PGCIT(vm_t *vm, ifo_handle_t *h, uint16_t lang);
static pgcit_t* get_PGCIT(vm_t *vm);
+static void vm_close(vm_t *vm);
/* Helper functions */
@@ -262,7 +265,7 @@
}
void vm_free_vm(vm_t *vm) {
- vm_stop(vm);
+ vm_close(vm);
free(vm);
}
@@ -289,12 +292,20 @@
int vm_start(vm_t *vm) {
/* Set pgc to FP (First Play) pgc */
+ if (vm->stopped) {
+ vm_reset(vm, NULL);
+ vm->stopped = 0;
+ }
set_FP_PGC(vm);
process_command(vm, play_PGC(vm));
return !vm->stopped;
}
void vm_stop(vm_t *vm) {
+ vm->stopped = 1;
+}
+
+static void vm_close(vm_t *vm) {
if(vm->vmgi) {
ifoClose(vm->vmgi);
vm->vmgi=NULL;
@@ -346,7 +357,7 @@
if (vm->dvd && dvdroot) {
/* a new dvd device has been requested */
- vm_stop(vm);
+ vm_close(vm);
}
if (!vm->dvd) {
vm->dvd = DVDOpen(dvdroot);