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root/cebix/BasiliskII/src/BeOS/extfs_beos.cpp

Comparing BasiliskII/src/BeOS/extfs_beos.cpp (file contents):
Revision 1.8 by cebix, 1999-11-08T18:05:59Z vs.
Revision 1.10 by cebix, 2000-04-10T18:52:49Z

#	Line 1 | Line 1
1		/*
2		*  extfs_beos.cpp - MacOS file system for access native file system access, BeOS specific stuff
3		*
4	<	*  Basilisk II (C) 1997-1999 Christian Bauer
4	>	*  Basilisk II (C) 1997-2000 Christian Bauer
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 369 | Line 369 | void close_rfork(const char *path, int f
369
370		/*
371		*  Read "length" bytes from file to "buffer",
372	<	*  returns number of bytes read (or 0)
372	>	*  returns number of bytes read (or -1 on error)
373		*/
374
375		static inline ssize_t sread(int fd, void *buf, size_t count)
#	Line 379 | Line 379 | static inline ssize_t sread(int fd, void
379		return res;
380		}
381
382	<	size_t extfs_read(int fd, void *buffer, size_t length)
382	>	ssize_t extfs_read(int fd, void *buffer, size_t length)
383		{
384	–	errno = 0;
385	–
384		// Buffer in kernel space?
387	–	size_t actual = 0;
385		if ((uint32)buffer < 0x80000000) {
386
387		// Yes, transfer via buffer
388	+	ssize_t actual = 0;
389		while (length) {
390		size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length;
391		ssize_t res = sread(fd, tmp_buf, transfer_size);
392	<	if (res >= 0) {
393	<	memcpy(buffer, tmp_buf, res);
394	<	buffer = (void *)((uint8 *)buffer + res);
395	<	length -= res;
396	<	actual += res;
397	<	}
392	>	if (res < 0)
393	>	return res;
394	>	memcpy(buffer, tmp_buf, res);
395	>	buffer = (void *)((uint8 *)buffer + res);
396	>	length -= res;
397	>	actual += res;
398		if (res != transfer_size)
399		return actual;
400		}
401	+	return actual;
402
403		} else {
404
405		// No, transfer directly
406	<	actual = sread(fd, buffer, length);
408	<	if (actual < 0)
409	<	actual = 0;
406	>	return sread(fd, buffer, length);
407		}
411	–	return actual;
408		}
409
410
411		/*
412		*  Write "length" bytes from "buffer" to file,
413	<	*  returns number of bytes written (or 0)
413	>	*  returns number of bytes written (or -1 on error)
414		*/
415
416		static inline ssize_t swrite(int fd, void *buf, size_t count)
#	Line 424 | Line 420 | static inline ssize_t swrite(int fd, voi
420		return res;
421		}
422
423	<	size_t extfs_write(int fd, void *buffer, size_t length)
423	>	ssize_t extfs_write(int fd, void *buffer, size_t length)
424		{
429	–	errno = 0;
430	–
425		// Buffer in kernel space?
432	–	size_t actual = 0;
426		if ((uint32)buffer < 0x80000000) {
427
428		// Yes, transfer via buffer
429	+	ssize_t actual = 0;
430		while (length) {
431		size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length;
432		memcpy(tmp_buf, buffer, transfer_size);
433		ssize_t res = swrite(fd, tmp_buf, transfer_size);
434	<	if (res >= 0) {
435	<	buffer = (void *)((uint8 *)buffer + res);
436	<	length -= res;
437	<	actual += res;
438	<	}
434	>	if (res < 0)
435	>	return res;
436	>	buffer = (void *)((uint8 *)buffer + res);
437	>	length -= res;
438	>	actual += res;
439		if (res != transfer_size)
440		return actual;
441		}
442	+	return actual;
443
444		} else {
445
446		// No, transfer directly
447	<	actual = swrite(fd, buffer, length);
453	<	if (actual < 0)
454	<	actual = 0;
447	>	return swrite(fd, buffer, length);
448		}
456	–	return actual;
449		}
450
451

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