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load/save state are now actual tasks

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This commit is contained in:
Brad Parker 2016-10-02 04:03:35 -04:00
parent e9f463154c
commit eac3ca770a
3 changed files with 469 additions and 139 deletions
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35
command.c
View File

@ -1228,13 +1228,12 @@ static void command_event_load_auto_state(void)
if (!path_file_exists(savestate_name_auto))
return;
ret = content_load_state(savestate_name_auto, false);
ret = content_load_state(savestate_name_auto, false, true);
RARCH_LOG("Found auto savestate in: %s\n", savestate_name_auto);
snprintf(msg, sizeof(msg), "Auto-loading savestate from \"%s\" %s.",
savestate_name_auto, ret ? "succeeded" : "failed");
runloop_msg_queue_push(msg, 1, 180, false);
RARCH_LOG("%s\n", msg);
}
@ -1612,19 +1611,7 @@ static void command_event_save_state(const char *path,
settings_t *settings = config_get_ptr();
if (!content_save_state(path, true))
{
snprintf(s, len, "%s \"%s\".",
msg_hash_to_str(MSG_FAILED_TO_SAVE_STATE_TO),
path);
return;
}
if (settings->state_slot < 0)
snprintf(s, len, "%s #-1 (auto).",
msg_hash_to_str(MSG_SAVED_STATE_TO_SLOT));
else
snprintf(s, len, "%s #%d.", msg_hash_to_str(MSG_SAVED_STATE_TO_SLOT),
settings->state_slot);
}
static void command_event_undo_save_state(char *s, size_t len)
@ -1659,24 +1646,12 @@ static void command_event_load_state(const char *path, char *s, size_t len)
{
settings_t *settings = config_get_ptr();
if (!content_load_state(path, false))
{
snprintf(s, len, "%s \"%s\".",
msg_hash_to_str(MSG_FAILED_TO_LOAD_STATE),
path);
if (!content_load_state(path, false, false))
return;
}
#ifdef HAVE_NETWORKING
netplay_driver_ctl(RARCH_NETPLAY_CTL_LOAD_SAVESTATE, NULL);
#endif
if (settings->state_slot < 0)
snprintf(s, len, "%s #-1 (auto).",
msg_hash_to_str(MSG_LOADED_STATE_FROM_SLOT));
else
snprintf(s, len, "%s #%d.", msg_hash_to_str(MSG_LOADED_STATE_FROM_SLOT),
settings->state_slot);
}
static void command_event_undo_load_state(char *s, size_t len)
@ -1713,6 +1688,7 @@ static void command_event_main_state(unsigned cmd)
char msg[128] = {0};
global_t *global = global_get_ptr();
settings_t *settings = config_get_ptr();
bool push_msg = true;
if (settings->state_slot > 0)
snprintf(path, sizeof(path), "%s%d",
@ -1731,9 +1707,11 @@ static void command_event_main_state(unsigned cmd)
{
case CMD_EVENT_SAVE_STATE:
command_event_save_state(path, msg, sizeof(msg));
push_msg = false;
break;
case CMD_EVENT_LOAD_STATE:
command_event_load_state(path, msg, sizeof(msg));
push_msg = false;
break;
case CMD_EVENT_UNDO_LOAD_STATE:
command_event_undo_load_state(msg, sizeof(msg));
@ -1747,7 +1725,8 @@ static void command_event_main_state(unsigned cmd)
strlcpy(msg, msg_hash_to_str(
MSG_CORE_DOES_NOT_SUPPORT_SAVESTATES), sizeof(msg));
runloop_msg_queue_push(msg, 2, 180, true);
if (push_msg)
runloop_msg_queue_push(msg, 2, 180, true);
RARCH_LOG("%s\n", msg);
}

4
content.h
View File

@ -1,7 +1,7 @@
/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - Daniel De Matteis
*
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
@ -44,7 +44,7 @@ bool content_load_ram_file(unsigned slot);
bool content_save_ram_file(unsigned slot);
/* Load a state from disk to memory. */
bool content_load_state(const char* path, bool load_to_backup_buffer);
bool content_load_state(const char* path, bool load_to_backup_buffer, bool autoload);
/* Save a state from memory to disk. */
bool content_save_state(const char *path, bool save_to_disk);

569
tasks/task_save.c
View File

@ -32,6 +32,7 @@
#include <streams/file_stream.h>
#include <rthreads/rthreads.h>
#include <file/file_path.h>
#include <retro_miscellaneous.h>
#ifdef HAVE_CONFIG_H
#include "../core.h"
@ -46,7 +47,7 @@
#include "../verbosity.h"
#include "tasks_internal.h"
/* TODO/FIXME - turn this into actual task */
#define SAVE_STATE_CHUNK 4096
static struct string_list *task_save_files = NULL;
@ -70,6 +71,22 @@ struct sram_block
size_t size;
};
typedef struct
{
RFILE *file;
char path[PATH_MAX_LENGTH];
void *data;
void *undo_data;
ssize_t size;
ssize_t undo_size;
ssize_t written;
ssize_t bytes_read;
bool load_to_backup_buffer;
bool autoload;
} save_task_state_t;
typedef save_task_state_t load_task_data_t;
/* Holds the previous saved state
* Can be restored to disk with undo_save_state(). */
static struct save_state_buf undo_save_buf;
@ -398,7 +415,7 @@ bool content_undo_load_state(void)
memcpy(blocks[i].data, ptr, blocks[i].size);
}
}
/* We need to make a temporary copy of the buffer, to allow the swap below */
temp_data = malloc(undo_load_buf.size);
temp_data_size = undo_load_buf.size;
@ -444,7 +461,7 @@ bool content_undo_load_state(void)
RARCH_ERR("%s \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_UNDO_LOAD_STATE),
undo_load_buf.path);
}
}
return ret;
}
@ -479,127 +496,237 @@ bool content_undo_save_state(void)
return ret;
}
/* TODO/FIXME - turn this into actual task */
/**
* save_state:
* @path : path of saved state that shall be written to.
* @save_to_disk: If false, saves the state onto undo_load_buf.
* Save a state from memory to disk.
* task_save_handler_finished:
* @task : the task to finish
* @state : the state associated with this task
*
* Returns: true if successful, false otherwise.
* Close the save state file and finish the task.
**/
bool content_save_state(const char *path, bool save_to_disk)
static void task_save_handler_finished(retro_task_t *task,
save_task_state_t *state)
{
retro_ctx_serialize_info_t serial_info;
retro_ctx_size_info_t info;
bool ret = false;
void *data = NULL;
task->finished = true;
core_serialize_size(&info);
filestream_close(state->file);
RARCH_LOG("%s: \"%s\".\n",
msg_hash_to_str(MSG_SAVING_STATE),
path);
if (!task->error && task->cancelled)
task->error = strdup("Task canceled");
if (info.size == 0)
return false;
if (state->data)
free(state->data);
data = malloc(info.size);
if (!data)
return false;
RARCH_LOG("%s: %d %s.\n",
msg_hash_to_str(MSG_STATE_SIZE),
(int)info.size,
msg_hash_to_str(MSG_BYTES));
serial_info.data = data;
serial_info.size = info.size;
ret = core_serialize(&serial_info);
if (ret)
{
if (save_to_disk)
{
if (path_file_exists(path))
{
/* Before overwritting the savestate file, load it into a buffer
to allow undo_save_state() to work */
/* TODO/FIXME - Use msg_hash_to_str here */
RARCH_LOG("%s\n",
"File already exists. Saving to backup buffer...");
content_load_state(path, true);
}
ret = filestream_write_file(path, data, info.size);
}
else
{
/* save_to_disk is false, which means we are saving the state
in undo_load_buf to allow content_undo_load_state() to restore it */
/* If we were holding onto an old state already, clean it up first */
if (undo_load_buf.data)
{
free(undo_load_buf.data);
undo_load_buf.data = NULL;
}
undo_load_buf.data = malloc(info.size);
if (!undo_load_buf.data)
{
free(data);
return false;
}
memcpy(undo_load_buf.data, data, info.size);
undo_load_buf.size = info.size;
strlcpy(undo_load_buf.path, path, sizeof(undo_load_buf.path));
}
}
else
{
RARCH_ERR("%s \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_SAVE_STATE_TO),
path);
}
free(data);
return ret;
free(state);
}
/**
* content_load_state:
* task_load_handler_finished:
* @task : the task to finish
* @state : the state associated with this task
*
* Close the loaded state file and finish the task.
**/
static void task_load_handler_finished(retro_task_t *task,
save_task_state_t *state)
{
load_task_data_t *task_data = NULL;
task->finished = true;
filestream_close(state->file);
if (!task->error && task->cancelled)
task->error = strdup("Task canceled");
task_data = (load_task_data_t*)calloc(1, sizeof(*task_data));
memcpy(task_data, state, sizeof(*task_data));
task->task_data = task_data;
free(state);
}
/**
* task_save_handler:
* @task : the task being worked on
*
* Write a chunk of data to the save state file.
**/
static void task_save_handler(retro_task_t *task)
{
save_task_state_t *state = (save_task_state_t*)task->state;
int written;
ssize_t remaining;
if (!state->file)
{
state->file = filestream_open(state->path, RFILE_MODE_WRITE, -1);
if (!state->file)
return;
}
remaining = MIN(state->size - state->written, SAVE_STATE_CHUNK);
written = filestream_write(state->file, state->data + state->written, remaining);
state->written += written;
task->progress = (state->written / (float)state->size) * 100;
if (task->cancelled || written != remaining)
{
char err[PATH_MAX_LENGTH] = {0};
snprintf(err, sizeof(err), "%s %s", msg_hash_to_str(MSG_FAILED_TO_SAVE_STATE_TO), state->path);
task->error = strdup(err);
task_save_handler_finished(task, state);
return;
}
if (state->written == state->size)
{
settings_t *settings = config_get_ptr();
char msg[1024] = {0};
task_save_handler_finished(task, state);
if (task->title)
free(task->title);
task->title = NULL;
if (settings->state_slot < 0)
snprintf(msg, sizeof(msg), "%s #-1 (auto).",
msg_hash_to_str(MSG_SAVED_STATE_TO_SLOT));
else
snprintf(msg, sizeof(msg), "%s #%d.", msg_hash_to_str(MSG_SAVED_STATE_TO_SLOT),
settings->state_slot);
runloop_msg_queue_push(msg, 2, 180, true);
return;
}
}
/**
* task_load_handler:
* @task : the task being worked on
*
* Load a chunk of data from the save state file.
**/
static void task_load_handler(retro_task_t *task)
{
save_task_state_t *state = (save_task_state_t*)task->state;
ssize_t remaining;
ssize_t bytes_read;
if (!state->file)
{
state->file = filestream_open(state->path, RFILE_MODE_READ, -1);
if (!state->file)
return;
if (filestream_seek(state->file, 0, SEEK_END) != 0)
return;
state->size = filestream_tell(state->file);
if (state->size < 0)
return;
filestream_rewind(state->file);
state->data = malloc(state->size + 1);
if (!state->data)
return;
}
remaining = MIN(state->size - state->bytes_read, SAVE_STATE_CHUNK);
bytes_read = filestream_read(state->file, state->data + state->bytes_read, remaining);
state->bytes_read += bytes_read;
task->progress = (state->bytes_read / (float)state->size) * 100;
if (task->cancelled || bytes_read != remaining)
{
if (state->autoload)
{
char msg[1024] = {0};
snprintf(msg, sizeof(msg), "Auto-loading savestate from \"%s\" failed.",
state->path);
task->error = strdup(msg);
}
else
{
task->error = strdup(msg_hash_to_str(MSG_FAILED_TO_LOAD_STATE));
}
free(state->data);
state->data = NULL;
task_load_handler_finished(task, state);
return;
}
if (state->bytes_read == state->size)
{
settings_t *settings = config_get_ptr();
char msg[1024] = {0};
if (task->title)
free(task->title);
task->title = NULL;
if (state->autoload)
{
snprintf(msg, sizeof(msg), "Auto-loading savestate from \"%s\" succeeded.",
state->path);
runloop_msg_queue_push(msg, 1, 180, true);
}
else
{
if (settings->state_slot < 0)
snprintf(msg, sizeof(msg), "%s #-1 (auto).",
msg_hash_to_str(MSG_LOADED_STATE_FROM_SLOT));
else
snprintf(msg, sizeof(msg), "%s #%d.", msg_hash_to_str(MSG_LOADED_STATE_FROM_SLOT),
settings->state_slot);
runloop_msg_queue_push(msg, 2, 180, true);
}
task_load_handler_finished(task, state);
return;
}
}
/**
* content_load_state_cb:
* @path : path that state will be loaded from.
* @load_to_backup_buffer: If true, the state will be loaded into undo_save_buf.
* Load a state from disk to memory.
*
* Returns: true if successful, false otherwise.
*
*
**/
bool content_load_state(const char *path, bool load_to_backup_buffer)
static void content_load_state_cb(void *task_data,
void *user_data, const char *error)
{
load_task_data_t *load_data = (load_task_data_t*)task_data;
unsigned i;
ssize_t size;
bool ret;
ssize_t size = load_data->size;
retro_ctx_serialize_info_t serial_info;
unsigned num_blocks = 0;
void *buf = NULL;
void *buf = load_data->data;
struct sram_block *blocks = NULL;
bool ret = filestream_read_file(path, &buf, &size);
settings_t *settings = config_get_ptr();
char err_buf[1024] = {0};
RARCH_LOG("%s: \"%s\".\n",
msg_hash_to_str(MSG_LOADING_STATE),
path);
load_data->path);
if (!ret || size < 0)
if (size < 0 || !buf)
goto error;
RARCH_LOG("%s: %u %s.\n",
@ -609,7 +736,7 @@ bool content_load_state(const char *path, bool load_to_backup_buffer)
/* This means we're backing up the file in memory, so content_undo_save_state()
can restore it */
if (load_to_backup_buffer)
if (load_data->load_to_backup_buffer)
{
/* If we were previously backing up a file, let go of it first */
if (undo_save_buf.data)
@ -624,10 +751,11 @@ bool content_load_state(const char *path, bool load_to_backup_buffer)
memcpy(undo_save_buf.data, buf, size);
undo_save_buf.size = size;
strlcpy(undo_save_buf.path, path, sizeof(undo_save_buf.path));
strlcpy(undo_save_buf.path, load_data->path, sizeof(undo_save_buf.path));
free(buf);
return true;
free(load_data);
return;
}
if (settings->block_sram_overwrite && task_save_files
@ -681,7 +809,7 @@ bool content_load_state(const char *path, bool load_to_backup_buffer)
serial_info.data_const = buf;
serial_info.size = size;
/* Backup the current state so we can undo this load */
content_save_state("RAM", false);
@ -708,20 +836,243 @@ bool content_load_state(const char *path, bool load_to_backup_buffer)
for (i = 0; i < num_blocks; i++)
free(blocks[i].data);
free(blocks);
if (!ret)
goto error;
free(buf);
free(load_data);
return true;
return;
error:
if (load_data->autoload)
snprintf(err_buf, sizeof(err_buf), "Auto-loading savestate from \"%s\" failed.",
load_data->path);
else
snprintf(err_buf, sizeof(err_buf), "%s \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_LOAD_STATE),
load_data->path);
runloop_msg_queue_push(err_buf, 1, 180, true);
RARCH_ERR("%s \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_LOAD_STATE),
load_data->path);
if (buf)
free(buf);
free(load_data);
return;
}
/**
* task_push_save_state:
* @path : file path of the save state
* @data : the save state data to write
* @size : the total size of the save state
*
* Create a new task to save the content state.
**/
static void task_push_save_state(const char *path, void *data, size_t size)
{
retro_task_t *task = (retro_task_t*)calloc(1, sizeof(*task));
save_task_state_t *state = (save_task_state_t*)calloc(1, sizeof(*state));
if (!task || !state)
{
if (data)
free(data);
return;
}
strlcpy(state->path, path, sizeof(state->path));
state->data = data;
state->size = size;
task->state = state;
task->handler = task_save_handler;
task->title = strdup(msg_hash_to_str(MSG_SAVING_STATE));
task_queue_ctl(TASK_QUEUE_CTL_PUSH, task);
}
/**
* content_load_and_save_state_cb:
* @path : path that state will be loaded from.
* Load then save a state.
*
**/
static void content_load_and_save_state_cb(void *task_data,
void *user_data, const char *error)
{
load_task_data_t *load_data = (load_task_data_t*)task_data;
char *path = strdup(load_data->path);
void *data = load_data->undo_data;
size_t size = load_data->undo_size;
content_load_state_cb(task_data, user_data, error);
task_push_save_state(path, data, size);
free(path);
}
/**
* task_push_load_and_save_state:
* @path : file path of the save state
* @data : the save state data to write
* @size : the total size of the save state
* @load_to_backup_buffer : If true, the state will be loaded into undo_save_buf.
*
* Create a new task to both load and save the content state.
**/
static void task_push_load_and_save_state(const char *path, void *data, size_t size, bool load_to_backup_buffer)
{
retro_task_t *task = (retro_task_t*)calloc(1, sizeof(*task));
save_task_state_t *state = (save_task_state_t*)calloc(1, sizeof(*state));
if (!task || !state)
{
if (data)
free(data);
return;
}
strlcpy(state->path, path, sizeof(state->path));
state->load_to_backup_buffer = load_to_backup_buffer;
state->undo_size = size;
state->undo_data = data;
task->state = state;
task->handler = task_load_handler;
task->callback = content_load_and_save_state_cb;
task->title = strdup(msg_hash_to_str(MSG_LOADING_STATE));
task_queue_ctl(TASK_QUEUE_CTL_PUSH, task);
}
/**
* content_save_state:
* @path : path of saved state that shall be written to.
* @save_to_disk: If false, saves the state onto undo_load_buf.
* Save a state from memory to disk.
*
* Returns: true if successful, false otherwise.
**/
bool content_save_state(const char *path, bool save_to_disk)
{
retro_ctx_serialize_info_t serial_info;
retro_ctx_size_info_t info;
bool ret = false;
void *data = NULL;
core_serialize_size(&info);
RARCH_LOG("%s: \"%s\".\n",
msg_hash_to_str(MSG_SAVING_STATE),
path);
free(buf);
return false;
if (info.size == 0)
return false;
data = malloc(info.size);
if (!data)
return false;
RARCH_LOG("%s: %d %s.\n",
msg_hash_to_str(MSG_STATE_SIZE),
(int)info.size,
msg_hash_to_str(MSG_BYTES));
serial_info.data = data;
serial_info.size = info.size;
ret = core_serialize(&serial_info);
if (ret)
{
if (save_to_disk)
{
if (path_file_exists(path))
{
/* Before overwritting the savestate file, load it into a buffer
to allow undo_save_state() to work */
/* TODO/FIXME - Use msg_hash_to_str here */
RARCH_LOG("%s\n",
"File already exists. Saving to backup buffer...");
task_push_load_and_save_state(path, data, info.size, true);
}
else
task_push_save_state(path, data, info.size);
}
else
{
/* save_to_disk is false, which means we are saving the state
in undo_load_buf to allow content_undo_load_state() to restore it */
/* If we were holding onto an old state already, clean it up first */
if (undo_load_buf.data)
{
free(undo_load_buf.data);
undo_load_buf.data = NULL;
}
undo_load_buf.data = malloc(info.size);
if (!undo_load_buf.data)
{
free(data);
return false;
}
memcpy(undo_load_buf.data, data, info.size);
free(data);
undo_load_buf.size = info.size;
strlcpy(undo_load_buf.path, path, sizeof(undo_load_buf.path));
}
}
else
{
free(data);
RARCH_ERR("%s \"%s\".\n",
msg_hash_to_str(MSG_FAILED_TO_SAVE_STATE_TO),
path);
}
return ret;
}
/**
* content_load_state:
* @path : path that state will be loaded from.
* @load_to_backup_buffer: If true, the state will be loaded into undo_save_buf.
* Load a state from disk to memory.
*
* Returns: true if successful, false otherwise.
*
*
**/
bool content_load_state(const char *path, bool load_to_backup_buffer, bool autoload)
{
retro_task_t *task = (retro_task_t*)calloc(1, sizeof(*task));
save_task_state_t *state = (save_task_state_t*)calloc(1, sizeof(*state));
if (!task || !state)
return false;
strlcpy(state->path, path, sizeof(state->path));
state->load_to_backup_buffer = load_to_backup_buffer;
state->autoload = autoload;
task->state = state;
task->handler = task_load_handler;
task->callback = content_load_state_cb;
task->title = strdup(msg_hash_to_str(MSG_LOADING_STATE));
task_queue_ctl(TASK_QUEUE_CTL_PUSH, task);
return true;
}
bool content_rename_state(const char *origin, const char *dest)
@ -739,7 +1090,7 @@ bool content_rename_state(const char *origin, const char *dest)
}
/*
*
*
* TODO/FIXME: Figure out when and where this should be called.
* As it is, when e.g. closing Gambatte, we get the same printf message 4 times.
*
@ -900,7 +1251,7 @@ bool content_save_ram_file(unsigned slot)
msg_hash_to_str(MSG_FAILED_TO_SAVE_SRAM));
RARCH_WARN("Attempting to recover ...\n");
/* In case the file could not be written to,
/* In case the file could not be written to,
* the fallback function 'dump_to_file_desperate'
* will be called. */
if (!dump_to_file_desperate(mem_info.data, mem_info.size, ram.type))