nix-daemon: Fix splice faking on non-Linux
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@ -32,14 +32,14 @@ using namespace nix;
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#ifndef __linux__
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#define SPLICE_F_MOVE 0
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static ssize_t splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags)
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static ssize_t splice(int fd_in, void *off_in, int fd_out, void *off_out, size_t len, unsigned int flags)
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{
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/* We ignore most parameters, we just have them for conformance with the linux syscall */
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char buf[8192];
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auto read_count = read(fd_in, buf, sizeof(buf));
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if (read_count == -1)
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return read_count;
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auto write_count = decltype<read_count>(0);
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auto write_count = decltype(read_count)(0);
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while (write_count < read_count) {
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auto res = write(fd_out, buf + write_count, read_count - write_count);
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if (res == -1)
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