1 files changed, 193 insertions, 0 deletions
diff --git a/src/dabInputRawFifo.cpp b/src/dabInputRawFifo.cpp
new file mode 100644
index 0000000..b40e14d
--- /dev/null
+++ b/src/dabInputRawFifo.cpp
@@ -0,0 +1,193 @@
+/*
+   Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
+   Research Center Canada)
+   */
+/*
+   This file is part of CRC-DabMux.
+
+   CRC-DabMux 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 Foundation, either version 3 of the
+   License, or (at your option) any later version.
+
+   CRC-DabMux is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with CRC-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+   */
+
+#include "dabInputRawFifo.h"
+
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+
+#ifndef _WIN32
+#   define O_BINARY 0
+#endif
+
+
+#ifdef HAVE_FORMAT_RAW
+#   ifdef HAVE_INPUT_FILE
+
+
+struct dabInputOperations dabInputRawFifoOperations = {
+    dabInputRawFifoInit,
+    dabInputRawFifoOpen,
+    dabInputRawFifoSetbuf,
+    dabInputRawFifoRead,
+    NULL,
+    NULL,
+    dabInputRawFifoReadFrame,
+    dabInputSetbitrate,
+    dabInputRawFifoClose,
+    dabInputRawFifoClean,
+    dabInputRawFifoRewind
+};
+
+
+int dabInputRawFifoInit(void** args)
+{
+    dabInputRawFifoData* data = new dabInputRawFifoData;
+    data->file = -1;
+    data->buffer = NULL;
+    data->bufferSize = 0;
+    data->bufferOffset = 0;
+
+    *args = data;
+    return 0;
+}
+
+
+int dabInputRawFifoOpen(void* args, const char* filename)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+    data->file = open(filename, O_RDONLY | O_BINARY | O_NONBLOCK);
+    if (data->file == -1) {
+        perror(filename);
+        return -1;
+    }
+#ifdef _WIN32
+#else
+    int flags = fcntl(data->file, F_GETFL);
+    if (flags == -1) {
+        perror(filename);
+        return -1;
+    }
+    if (fcntl(data->file, F_SETFL, flags & ~O_NONBLOCK) == -1) {
+        perror(filename);
+        return -1;
+    }
+#endif
+
+    return 0;
+}
+
+
+int dabInputRawFifoSetbuf(void* args, int size)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+
+    if (size <= 0) {
+        return size;
+    }
+
+    if (data->bufferSize != size) {
+        if (data->buffer != NULL) {
+            delete[] data->buffer;
+        }
+        data->buffer = new uint8_t[size];
+        data->bufferSize = size;
+        data->bufferOffset = 0;
+    }
+
+    return 0;
+}
+
+
+int dabInputRawFifoRead(void* args, void* buffer, int size)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+
+    return read(data->file, buffer, size);
+}
+
+
+int dabInputRawFifoReadFrame(dabInputOperations* ops, void* args,
+        void* buffer, int size)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+    int result;
+
+    result = ops->read(args, data->buffer + data->bufferOffset, size - data->bufferOffset);
+    if (result == -1) {
+        etiLog.print(TcpLog::CRIT, "ERROR: Can't read fifo\n");
+        perror("");
+        return -1;
+    }
+
+    if (result + data->bufferOffset < size) {
+        data->bufferOffset += result;
+
+        etiLog.print(TcpLog::NOTICE, "reach end of fifo -> rewinding\n");
+        if (ops->rewind(args) == -1) {
+            etiLog.print(TcpLog::CRIT, "ERROR: Can't rewind fifo\n");
+            return -1;
+        }
+
+        result = ops->read(args, data->buffer + data->bufferOffset, size - data->bufferOffset);
+        if (result == -1) {
+            etiLog.print(TcpLog::CRIT, "ERROR: Can't read fifo\n");
+            perror("");
+            return -1;
+        }
+
+        if (result < size) {
+            etiLog.print(TcpLog::CRIT, "ERROR: Not enought data in fifo\n");
+            return 0;
+        }
+    }
+
+    memcpy(buffer, data->buffer, size);
+    data->bufferOffset = 0;
+
+    return size;
+}
+
+
+int dabInputRawFifoClose(void* args)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+    
+    if (data->file != -1) {
+        close(data->file);
+        data->file = -1;
+    }
+    return 0;
+}
+
+
+int dabInputRawFifoClean(void** args)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)*args;
+    if (data->buffer != NULL) {
+        delete[] data->buffer;
+    }
+    delete data;
+    return 0;
+}
+
+
+int dabInputRawFifoRewind(void* args)
+{
+    dabInputRawFifoData* data = (dabInputRawFifoData*)args;
+    return lseek(data->file, 0, SEEK_SET);
+}
+
+
+#   endif
+#endif