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-rw-r--r--backends/fs/psp/psp-fs.cpp22
-rw-r--r--backends/fs/psp/psp-stream.cpp221
-rw-r--r--backends/fs/psp/psp-stream.h18
3 files changed, 178 insertions, 83 deletions
diff --git a/backends/fs/psp/psp-fs.cpp b/backends/fs/psp/psp-fs.cpp
index 03247e86ad..0c53020d94 100644
--- a/backends/fs/psp/psp-fs.cpp
+++ b/backends/fs/psp/psp-fs.cpp
@@ -27,7 +27,6 @@
#include "engines/engine.h"
#include "backends/fs/abstract-fs.h"
#include "backends/fs/psp/psp-stream.h"
-#include "backends/platform/psp/powerman.h"
#include <sys/stat.h>
#include <unistd.h>
@@ -38,7 +37,6 @@
#include "backends/platform/psp/trace.h"
-
/**
* Implementation of the ScummVM file system API based on PSPSDK API.
*
@@ -98,7 +96,8 @@ PSPFilesystemNode::PSPFilesystemNode(const Common::String &p, bool verify) {
if (verify) {
struct stat st;
- PowerMan.beginCriticalSection();
+ if(PowerMan.beginCriticalSection()==PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPFilesystemNode::PSPFilesystemNode\n");
_isValid = (0 == stat(_path.c_str(), &st));
PowerMan.endCriticalSection();
_isDirectory = S_ISDIR(st.st_mode);
@@ -108,7 +107,9 @@ PSPFilesystemNode::PSPFilesystemNode(const Common::String &p, bool verify) {
bool PSPFilesystemNode::exists() const {
int ret = 0;
- PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPFilesystemNode::exists()\n"); // Make sure to block in case of suspend
+
ret = access(_path.c_str(), F_OK);
PowerMan.endCriticalSection();
@@ -118,7 +119,9 @@ bool PSPFilesystemNode::exists() const {
bool PSPFilesystemNode::isReadable() const {
int ret = 0;
- PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPFilesystemNode::isReadable()\n"); // Make sure to block in case of suspend
+
ret = access(_path.c_str(), R_OK);
PowerMan.endCriticalSection();
@@ -128,7 +131,9 @@ bool PSPFilesystemNode::isReadable() const {
bool PSPFilesystemNode::isWritable() const {
int ret = 0;
- PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPFilesystemNode::isWritable()\n"); // Make sure to block in case of suspend
+
ret = access(_path.c_str(), W_OK);
PowerMan.endCriticalSection();
@@ -156,8 +161,9 @@ bool PSPFilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool
bool ret = true;
- PowerMan.beginCriticalSection(); // Make sure to block in case of suspend
-
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPFilesystemNode::getChildren\n"); // Make sure to block in case of suspend
+
int dfd = sceIoDopen(_path.c_str());
if (dfd > 0) {
SceIoDirent dir;
diff --git a/backends/fs/psp/psp-stream.cpp b/backends/fs/psp/psp-stream.cpp
index c88e711cd0..d72bafd0ad 100644
--- a/backends/fs/psp/psp-stream.cpp
+++ b/backends/fs/psp/psp-stream.cpp
@@ -24,8 +24,13 @@
*/
#ifdef __PSP__
-#include "backends/fs/psp/psp-stream.h"
+#include <SDL/SDL_thread.h>
+#include <SDL/SDL_mutex.h>
+
#include "backends/platform/psp/trace.h"
+#include "backends/platform/psp/powerman.h"
+#include "backends/fs/psp/psp-stream.h"
+
#include <errno.h>
PSPIoStream::PSPIoStream(const Common::String &path, bool writeMode)
@@ -34,91 +39,89 @@ PSPIoStream::PSPIoStream(const Common::String &path, bool writeMode)
assert(!path.empty());
_handle = (void *)0; // Need to do this since base class asserts not 0.
-
- PowerMan.registerSuspend(this); // Register with the powermanager to be suspended
-
+ _ferror = false;
+ _feof = false;
+ _pos = 0;
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSuspend = 0;
+ _errorSource = 0;
+ _errorPos = 0;
+ _errorHandle = 0;
+ _suspendCount = 0;
+#endif
}
PSPIoStream::~PSPIoStream() {
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
+ PSPDebugSuspend("Suspended in PSPIoStream::~PSPIoStream()\n");
+
PowerMan.unregisterSuspend(this); // Unregister with powermanager to be suspended
// Must do this before fclose() or resume() will reopen.
- fclose((FILE *)_handle);
+ fclose((FILE *)_handle); // We don't need a critical section(?). Worst case, the handle gets closed on its own
+
+ PowerMan.endCriticalSection();
}
// Function to open the file pointed to by the path.
//
//
-void * PSPIoStream::open() {
- if (PowerMan.beginCriticalSection()==PowerManager::Blocked) {
+void *PSPIoStream::open() {
+ if (PowerMan.beginCriticalSection() == PowerManager::Blocked) {
// No need to open. Just return the _handle resume() already opened.
- PSPDebugTrace("Suspended in PSPIoStream::open\n");
- } else {
- _handle = fopen(_path.c_str(), _writeMode ? "wb" : "rb"); // open
- }
-
+ PSPDebugSuspend("Suspended in PSPIoStream::open\n");
+ }
+
+ _handle = fopen(_path.c_str(), _writeMode ? "wb" : "rb"); // open
+
+ PowerMan.registerSuspend(this); // Register with the powermanager to be suspended
+
PowerMan.endCriticalSection();
return _handle;
}
bool PSPIoStream::err() const {
- bool ret;
-
- if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::err()\n");
-
- ret = ferror((FILE *)_handle) != 0;
-
- PowerMan.endCriticalSection();
-
- return ret;
+ if (_ferror)
+ PSPDebugSuspend("In PSPIoStream::err - mem_ferror=%d, source=%d, suspend error=%d, pos=%d, _errorPos=%d, _errorHandle=%p, suspendCount=%d _handle\n",
+ _ferror, _errorSource, _errorSuspend, _pos, _errorPos, _errorHandle, _suspendCount);
+
+ return _ferror;
}
void PSPIoStream::clearErr() {
- if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::clearErr()\n");
-
- clearerr((FILE *)_handle);
-
- PowerMan.endCriticalSection();
+ _ferror = false; // Remove regular error bit
+
}
bool PSPIoStream::eos() const {
- bool ret;
-
- if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::eos()\n");
-
- ret = feof((FILE *)_handle) != 0;
-
- PowerMan.endCriticalSection();
-
- return ret;
+ return _feof;
}
int32 PSPIoStream::pos() const {
- int32 ret;
-
- if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::pos()\n");
-
- ret = ftell((FILE *)_handle);
-
- PowerMan.endCriticalSection();
-
- return ret;
+ return _pos;
}
int32 PSPIoStream::size() const {
if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::size()\n");
+ PSPDebugSuspend("Suspended in PSPIoStream::size()\n");
- int32 oldPos = ftell((FILE *)_handle);
fseek((FILE *)_handle, 0, SEEK_END);
int32 length = ftell((FILE *)_handle);
- fseek((FILE *)_handle, oldPos, SEEK_SET);
+ fseek((FILE *)_handle, _pos, SEEK_SET);
+
+ if (_pos < 0 || length < 0) { // Check for errors
+ PSPDebugSuspend("In PSPIoStream::size(). encountered an error!\n");
+ _ferror = true;
+ length = -1; // If our oldPos is bad, we want length to be bad too to signal
+ clearerr((FILE *)_handle);
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSource = 2;
+#endif
+ }
PowerMan.endCriticalSection();
@@ -126,13 +129,27 @@ int32 PSPIoStream::size() const {
}
bool PSPIoStream::seek(int32 offs, int whence) {
- int ret = 0;
-
// Check if we can access the file
if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::seek()\n");
+ PSPDebugSuspend("Suspended in PSPIoStream::seek()\n");
- ret = fseek((FILE *)_handle, offs, whence);
+ int ret = fseek((FILE *)_handle, offs, whence);
+
+ if (ret != 0) {
+ _ferror = true;
+ PSPDebugSuspend("In PSPIoStream::seek(). encountered an error!\n");
+ clearerr((FILE *)_handle);
+ _feof = feof((FILE *)_handle);
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSource = 3;
+#endif
+ }
+ else { // everything ok
+ _feof = false; // Reset eof flag since we know it was ok
+ }
+
+ _pos = ftell((FILE *)_handle); // update pos
PowerMan.endCriticalSection();
@@ -140,13 +157,27 @@ bool PSPIoStream::seek(int32 offs, int whence) {
}
uint32 PSPIoStream::read(void *ptr, uint32 len) {
- int ret = 0;
-
// Check if we can access the file
if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::read()\n");
+ PSPDebugSuspend("Suspended in PSPIoStream::read()\n");
- ret = fread((byte *)ptr, 1, len, (FILE *)_handle);
+ size_t ret = fread((byte *)ptr, 1, len, (FILE *)_handle);
+
+ _pos += ret; // Update pos
+
+ if (ret != len) { // Check for eof
+ _feof = feof((FILE *)_handle);
+ if (!_feof) { // It wasn't an eof. Must be an error
+ _ferror = true;
+ clearerr((FILE *)_handle);
+ _pos = ftell((FILE *)_handle); // Update our position
+ PSPDebugSuspend("In PSPIoStream::read(). encountered an error!\n");
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSource = 4;
+#endif
+ }
+ }
PowerMan.endCriticalSection();
@@ -154,13 +185,24 @@ uint32 PSPIoStream::read(void *ptr, uint32 len) {
}
uint32 PSPIoStream::write(const void *ptr, uint32 len) {
- int ret = 0;
-
// Check if we can access the file
if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::read()\n");
+ PSPDebugSuspend("Suspended in PSPIoStream::read()\n");
+
+ size_t ret = fwrite(ptr, 1, len, (FILE *)_handle);
+
+ _pos += ret;
- ret = fwrite(ptr, 1, len, (FILE *)_handle);
+ if (ret != len) { // Set error
+ _ferror = true;
+ clearerr((FILE *)_handle);
+ _pos = ftell((FILE *)_handle); // Update pos
+ PSPDebugTrace("In PSPIoStream::write(). encountered an error!\n");
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSource = 5;
+#endif
+ }
PowerMan.endCriticalSection();
@@ -168,13 +210,21 @@ uint32 PSPIoStream::write(const void *ptr, uint32 len) {
}
bool PSPIoStream::flush() {
- int ret = 0;
-
- // Check if we can access the file
+ // Enter critical section
if (PowerMan.beginCriticalSection() == PowerManager::Blocked)
- PSPDebugTrace("Suspended in PSPIoStream::read()\n");
+ PSPDebugSuspend("Suspended in PSPIoStream::read()\n");
- ret = fflush((FILE *)_handle);
+ int ret = fflush((FILE *)_handle);
+
+ if (ret != 0) {
+ _ferror = true;
+ clearerr((FILE *)_handle);
+ PSPDebugSuspend("In PSPIoStream::flush(). encountered an error!\n");
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ _errorSource = 6;
+#endif
+ }
PowerMan.endCriticalSection();
@@ -199,10 +249,19 @@ PSPIoStream *PSPIoStream::makeFromPath(const Common::String &path, bool writeMod
* Function to suspend the IO stream (called by PowerManager)
*/
int PSPIoStream::suspend() {
+#ifdef __PSP_DEBUG_SUSPEND__
+ _suspendCount++;
+
+ if (_handle > 0 && _pos < 0) {
+ _errorSuspend = SuspendError;
+ _errorPos = _pos;
+ _errorHandle = _handle;
+ }
+#endif /* __PSP_DEBUG_SUSPEND__ */
+
if (_handle > 0) {
- _pos = ftell((FILE *)_handle); // Save our position
fclose((FILE *)_handle); // close our file descriptor
- _handle = 0; // Set handle to null
+ _handle = (void *)0xFFFFFFFF; // Set handle to non-null invalid value so makeFromPath doesn't return error
}
return 0;
@@ -213,18 +272,32 @@ int PSPIoStream::suspend() {
*/
int PSPIoStream::resume() {
int ret = 0;
-
+#ifdef __PSP_DEBUG_SUSPEND__
+ _suspendCount--;
+#endif
+
// We reopen our file descriptor
_handle = fopen(_path.c_str(), _writeMode ? "wb" : "rb");
if (_handle <= 0) {
- PSPDebugTrace("PSPIoStream::resume(): Couldn't reopen file %s\n", _path.c_str());
- ret = -1;
+ PSPDebugSuspend("PSPIoStream::resume(): Couldn't reopen file %s\n", _path.c_str());
}
// Resume our previous position
- if(_handle > 0) fseek((FILE *)_handle, _pos, SEEK_SET);
+ if (_handle > 0 && _pos > 0) {
+ ret = fseek((FILE *)_handle, _pos, SEEK_SET);
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ if (ret != 0) { // Check for problem
+ _errorSuspend = ResumeError;
+ _errorPos = _pos;
+ _errorHandle = _handle;
+ }
+#endif
+
+ }
return ret;
}
+
#endif /* __PSP__ */
diff --git a/backends/fs/psp/psp-stream.h b/backends/fs/psp/psp-stream.h
index 0363c92416..112d36ccdb 100644
--- a/backends/fs/psp/psp-stream.h
+++ b/backends/fs/psp/psp-stream.h
@@ -37,7 +37,23 @@ class PSPIoStream : public StdioStream, public Suspendable {
protected:
Common::String _path; /* Need to maintain for reopening after suspend */
bool _writeMode; /* "" */
- unsigned int _pos; /* "" */
+ int _pos; /* "" */
+ mutable int _ferror; /* Save file ferror */
+ mutable bool _feof; /* and eof */
+
+ enum {
+ SuspendError = 2,
+ ResumeError = 3
+ };
+
+ int _errorSuspend;
+ mutable int _errorSource;
+
+#ifdef __PSP_DEBUG_SUSPEND__
+ int _errorPos;
+ void * _errorHandle;
+ int _suspendCount;
+#endif /* __PSP_DEBUG_SUSPEND__ */
public:
/**
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 01:18:56 +0000