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#include <revolution/os.h>
#include <revolution/fs.h>
#include <revolution/nand.h>
#include <cstring>
#include <cstdio>
static IOSFd s_fd = -255;
static IOSError s_err = ISFS_ERROR_UNKNOWN;
static int s_stage;
static char s_message[256] ATTRIBUTE_ALIGN(64);
static NANDLoggingCallback s_callback = 0;
static void asyncRoutine(ISFSError, void*);
static void prepareLine(char line[256], int, const char*);
BOOL reserveFileDescriptor(void) {
BOOL enabled = FALSE;
BOOL busy_flag = FALSE;
enabled = OSDisableInterrupts();
if (s_fd == -255) {
s_fd = -254;
busy_flag = FALSE;
} else if (s_fd == -254) {
busy_flag = TRUE;
} else if (s_fd >= 0) {
busy_flag = TRUE;
} else {
busy_flag = TRUE;
}
OSRestoreInterrupts(enabled);
return busy_flag ? FALSE : TRUE;
}
BOOL NANDLoggingAddMessageAsync(NANDLoggingCallback cb, s32 errorCode, const char* fmt, ...) {
va_list ap;
ISFSError err = ISFS_ERROR_UNKNOWN;
if (!reserveFileDescriptor()) {
return FALSE;
}
va_start(ap, fmt);
vsnprintf(s_message, 256, fmt, ap);
va_end(ap);
s_callback = cb;
s_stage = 1;
if (errorCode == ISFS_ERROR_UNKNOWN || errorCode == IOS_ERROR_UNKNOWN) {
s_err = errorCode;
}
err = ISFS_OpenAsync((const u8*)"/shared2/test2/nanderr.log", 3, asyncRoutine, 0);
if (err == ISFS_ERROR_OK) {
return TRUE;
} else {
return FALSE;
}
}
static void callbackRoutine(BOOL result) {
if (s_callback) {
s_callback(result, s_err);
}
}
static void asyncRoutine(ISFSError result, void *ctxt) {
ISFSError ret = ISFS_ERROR_UNKNOWN;
static char s_rBuf[256] ATTRIBUTE_ALIGN(64);
static char s_wBuf[256] ATTRIBUTE_ALIGN(64);
++s_stage;
if (s_stage == 2) {
if (result >= 0) {
s_fd = result;
ret = ISFS_SeekAsync(s_fd, 0, 0, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 3) {
if (result == 0) {
ret = ISFS_ReadAsync(s_fd, (u8*)s_rBuf, 256, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 4) {
if (result == 256) {
ret = ISFS_SeekAsync(s_fd, 0, 0, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 5) {
if (result == 0) {
int n = 0;
s_rBuf[255] = '\0';
n = atoi(s_rBuf);
prepareLine(s_wBuf, n, s_message);
ret = ISFS_WriteAsync(s_fd, (const u8*)s_wBuf, 256, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 6) {
if (result == 256) {
int n = atoi(s_rBuf);
ret = ISFS_SeekAsync(s_fd, n * 256, 0, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 7) {
int n = atoi(s_rBuf);
if (result == n * 256) {
ret = ISFS_WriteAsync(s_fd, (const u8*)s_wBuf, 256, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 8) {
if (result == 256) {
ret = ISFS_CloseAsync(s_fd, asyncRoutine, 0);
if (ret != ISFS_ERROR_OK) {
callbackRoutine(FALSE);
}
} else {
callbackRoutine(FALSE);
}
} else if (s_stage == 9) {
if (result == ISFS_ERROR_OK) {
s_fd = -255;
callbackRoutine(TRUE);
} else {
callbackRoutine(FALSE);
}
}
}
static void prepareLine(char line[256], int n, const char* msg) {
char titleID[64];
int end = 0;
struct OSCalendarTime cal;
memset(line, ' ', 254);
OSTicksToCalendarTime(OSGetTime(), &cal);
strncpy(titleID, nandGetHomeDir() + 7, 8 + 1 + 8);
titleID[8] = '-';
titleID[8 + 1 + 8] = '\0';
end = snprintf(line, 256, "%d %04d/%02d/%02d %02d:%02d:%02d %s %s", n % (64 - 1) + 1, cal.year, cal.mon + 1, cal.mday, cal.hour, cal.min, cal.sec, titleID, msg);
if (end < 256) {
line[end] = ' ';
}
line[254] = '\r';
line[255] = '\n';
}
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