lighttpd 1.4.x
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100 lines
1.5 KiB
100 lines
1.5 KiB
#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include "stream.h" |
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#include "config.h" |
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#include "sys-mmap.h" |
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int stream_open(stream *f, buffer *fn) { |
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struct stat st; |
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#ifdef HAVE_MMAP |
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int fd; |
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#elif defined __WIN32 |
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HANDLE *fh, *mh; |
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void *p; |
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#endif |
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if (-1 == stat(fn->ptr, &st)) { |
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return -1; |
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} |
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f->size = st.st_size; |
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#ifdef HAVE_MMAP |
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if (-1 == (fd = open(fn->ptr, O_RDONLY))) { |
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return -1; |
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} |
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f->start = mmap(0, f->size, PROT_READ, MAP_SHARED, fd, 0); |
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close(fd); |
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if (MAP_FAILED == f->start) { |
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return -1; |
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} |
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#elif defined __WIN32 |
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fh = CreateFile(fn->ptr, |
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GENERIC_READ, |
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FILE_SHARE_READ, |
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NULL, |
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OPEN_EXISTING, |
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FILE_ATTRIBUTE_READONLY, |
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NULL); |
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if (!fh) return -1; |
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mh = CreateFileMapping( fh, |
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NULL, |
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PAGE_READONLY, |
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(sizeof(off_t) > 4) ? f->size >> 32 : 0, |
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f->size & 0xffffffff, |
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NULL); |
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if (!mh) { |
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LPVOID lpMsgBuf; |
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FormatMessage( |
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FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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FORMAT_MESSAGE_FROM_SYSTEM, |
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NULL, |
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GetLastError(), |
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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(LPTSTR) &lpMsgBuf, |
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0, NULL ); |
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return -1; |
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} |
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p = MapViewOfFile(mh, |
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FILE_MAP_READ, |
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0, |
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0, |
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0); |
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CloseHandle(mh); |
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CloseHandle(fh); |
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f->start = p; |
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#else |
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# error no mmap found |
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#endif |
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return 0; |
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} |
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int stream_close(stream *f) { |
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#ifdef HAVE_MMAP |
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if (f->start) munmap(f->start, f->size); |
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#elif defined(__WIN32) |
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if (f->start) UnmapViewOfFile(f->start); |
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#endif |
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f->start = NULL; |
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return 0; |
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}
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