41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#include "devoptab_fsa.h"
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#include "logger.h"
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#include <mutex>
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int __fsa_ftruncate(struct _reent *r,
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void *fd,
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off_t len) {
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FSError status;
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// Make sure length is non-negative
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if (!fd || len < 0) {
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r->_errno = EINVAL;
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return -1;
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}
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auto *file = (__fsa_file_t *) fd;
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auto *deviceData = (FSADeviceData *) r->deviceData;
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std::lock_guard<MutexWrapper> lock(file->mutex);
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// Set the new file size
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status = FSASetPosFile(deviceData->clientHandle, file->fd, len);
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if (status < 0) {
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DEBUG_FUNCTION_LINE_ERR("FSASetPosFile(0x%08X, 0x%08X, 0x%08X) failed: %s",
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deviceData->clientHandle, file->fd, len, FSAGetStatusStr(status));
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r->_errno = __fsa_translate_error(status);
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return -1;
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}
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status = FSATruncateFile(deviceData->clientHandle, file->fd);
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if (status < 0) {
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DEBUG_FUNCTION_LINE_ERR("FSATruncateFile(0x%08X, 0x%08X) failed: %s",
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deviceData->clientHandle, file->fd, FSAGetStatusStr(status));
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r->_errno = __fsa_translate_error(status);
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return -1;
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}
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return 0;
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}
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