97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
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//#define LOG_NDEBUG 0
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#define LOG_TAG "FsWriteDirect"
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#include <utils/plat_log.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <FsWriter.h>
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//#include <ConfigOption.h>
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typedef struct tag_FsDirectContext
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{
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// FILE *mpFile;
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// int mFd;
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struct cdx_stream_info *mpStream;
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} FsDirectContext;
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static ssize_t FsDirectWrite(FsWriter *thiz, const char *buf, size_t size)
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{
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FsDirectContext *pCtx = (FsDirectContext*)thiz->mPriv;
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return fileWriter(pCtx->mpStream, buf, size);
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}
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static int FsDirectSeek(FsWriter *thiz, int64_t nOffset, int fromWhere)
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{
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FsDirectContext *pCtx = (FsDirectContext*)thiz->mPriv;
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int ret;
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thiz->fsFlush(thiz);
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ret = pCtx->mpStream->seek(pCtx->mpStream, nOffset, fromWhere);
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return ret;
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}
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static int64_t FsDirectTell(FsWriter *thiz)
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{
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FsDirectContext *pCtx = (FsDirectContext*)thiz->mPriv;
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int64_t nFilePos;
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thiz->fsFlush(thiz);
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nFilePos = pCtx->mpStream->tell(pCtx->mpStream);
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return nFilePos;
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}
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static int FsDirectTruncate(FsWriter *thiz, int64_t nLength)
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{
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int ret;
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FsDirectContext *pCtx = (FsDirectContext*)thiz->mPriv;
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thiz->fsFlush(thiz);
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ret = pCtx->mpStream->truncate(pCtx->mpStream, nLength);
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return ret;
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}
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static int FsDirectFlush(FsWriter *thiz)
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{
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return 0;
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}
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FsWriter *initFsDirectWrite(struct cdx_stream_info *pStream)
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{
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FsWriter *pFsWriter = (FsWriter*)malloc(sizeof(FsWriter));
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if (NULL == pFsWriter) {
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aloge("Failed to alloc FsWriter(%s)", strerror(errno));
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return NULL;
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}
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memset(pFsWriter, 0, sizeof(FsWriter));
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FsDirectContext *pContext = (FsDirectContext*)malloc(sizeof(FsDirectContext));
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if (NULL == pContext) {
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aloge("Failed to alloc FsDirectContext(%s)", strerror(errno));
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free(pFsWriter);
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return NULL;
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}
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memset(pContext, 0, sizeof(FsDirectContext));
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pContext->mpStream = pStream;
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pFsWriter->fsWrite = FsDirectWrite;
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pFsWriter->fsSeek = FsDirectSeek;
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pFsWriter->fsTell = FsDirectTell;
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pFsWriter->fsTruncate = FsDirectTruncate;
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pFsWriter->fsFlush = FsDirectFlush;
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pFsWriter->mMode = FSWRITEMODE_DIRECT;
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pFsWriter->mPriv = (void*)pContext;
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return pFsWriter;
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}
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int deinitFsDirectWrite(FsWriter *pFsWriter)
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{
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if (NULL == pFsWriter) {
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aloge("pFsWriter is NULL!!");
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return -1;
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}
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FsDirectContext *pContext = (FsDirectContext*)pFsWriter->mPriv;
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free(pContext);
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free(pFsWriter);
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return 0;
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}
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