Using mmap() by default for allocating read buffers
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@ -1 +1 @@
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#define Cdrskin_timestamP "2009.11.26.211418"
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#define Cdrskin_timestamP "2009.11.28.122436"
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@ -108,6 +108,9 @@ Hint: You should also look into sg-freebsd-port.c, which is a younger and
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/* for ioctl(BLKGETSIZE) */
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#include <linux/fs.h>
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/* for mmap() */
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#include <sys/mman.h>
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#include <scsi/sg.h>
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/* Values within sg_io_hdr_t indicating success after ioctl(SG_IO) : */
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@ -2089,24 +2092,21 @@ int burn_os_stdio_capacity(char *path, off_t *bytes)
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/* ts A91122 : an interface to open(O_DIRECT) or similar OS tricks. */
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#ifdef Libburn_read_o_direcT
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#include <sys/mman.h>
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#ifdef PROT_READ
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#ifdef PROT_WRITE
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#ifdef MAP_SHARED
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#ifdef MAP_ANONYMOUS
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#ifdef MAP_FAILED
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#define Libburn_linux_do_mmaP 1
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#endif
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#endif
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#endif
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#endif
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#endif
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#ifdef Libburn_read_o_direcT
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#ifdef O_DIRECT
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#define Libburn_linux_do_o_direcT 1
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#endif
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#endif
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#endif
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#endif
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#endif
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#endif
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#endif /* Libburn_read_o_direcT */
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@ -2132,7 +2132,7 @@ void *burn_os_alloc_buffer(size_t amount, int flag)
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{
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void *buf = NULL;
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#ifdef Libburn_linux_do_o_direcT
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#ifdef Libburn_linux_do_mmaP
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/* >>> check whether size is suitable */;
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@ -2147,7 +2147,7 @@ void *burn_os_alloc_buffer(size_t amount, int flag)
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memset(buf, 0, amount);
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#else
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buf = calloc(1, amount);
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#endif /* ! Libburn_linux_do_o_direcT */
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#endif /* ! Libburn_linux_do_mmaP */
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return buf;
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}
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@ -2159,7 +2159,7 @@ int burn_os_free_buffer(void *buffer, size_t amount, int flag)
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if (buffer == NULL)
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return 0;
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#ifdef Libburn_linux_do_o_direcT
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#ifdef Libburn_linux_do_mmaP
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ret = munmap(buffer, amount);
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#else
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free(buffer);
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