65 lines
1.2 KiB
C++
65 lines
1.2 KiB
C++
#include "FileReader.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#ifdef _WIN32
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#define JES_O_BINARY O_BINARY
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#else
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#define JES_O_BINARY 0
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#endif
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namespace jes
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{
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bool FileReader::load(const char * fname, uint8_t ** buf, size_t * size)
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{
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struct stat st;
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if (stat(fname, &st) != 0)
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{
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return false;
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}
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if (st.st_size < 0)
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{
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return false;
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}
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*size = st.st_size;
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if (st.st_size == 0)
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{
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return true;
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}
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int fd = open(fname, O_RDONLY | JES_O_BINARY);
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if (fd < 0)
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{
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return false;
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}
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*buf = new uint8_t[st.st_size];
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off_t n_bytes_read = 0u;
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for (;;)
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{
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off_t rd_size = read(fd, &(*buf)[n_bytes_read], st.st_size - n_bytes_read);
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if (rd_size <= 0)
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break;
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n_bytes_read += rd_size;
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if (n_bytes_read >= st.st_size)
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break;
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}
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if (n_bytes_read != st.st_size)
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{
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delete[] *buf;
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*buf = NULL;
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close(fd);
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return false;
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}
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close(fd);
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return true;
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}
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}
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