/trunk/uspace/lib/libfs/libfs.c |
---|
36,7 → 36,6 |
#include "libfs.h" |
#include "../../srv/vfs/vfs.h" |
#include "../../srv/rd/rd.h" |
#include <errno.h> |
#include <async.h> |
#include <ipc/ipc.h> |
331,62 → 330,5 |
ops->node_put(tmp); |
} |
/** Read data from a block device. |
* |
* @param phone Phone to be used to communicate with the device. |
* @param buffer Communication buffer shared with the device. |
* @param bufpos Pointer to the first unread valid offset within the |
* communication buffer. |
* @param buflen Pointer to the number of unread bytes that are ready in |
* the communication buffer. |
* @param pos Device position to be read. |
* @param dst Destination buffer. |
* @param size Size of the destination buffer. |
* @param block_size Block size to be used for the transfer. |
* |
* @return True on success, false on failure. |
*/ |
bool libfs_blockread(int phone, void *buffer, off_t *bufpos, size_t *buflen, |
off_t *pos, void *dst, size_t size, size_t block_size) |
{ |
off_t offset = 0; |
size_t left = size; |
while (left > 0) { |
size_t rd; |
if (*bufpos + left < *buflen) |
rd = left; |
else |
rd = *buflen - *bufpos; |
if (rd > 0) { |
/* |
* Copy the contents of the communication buffer to the |
* destination buffer. |
*/ |
memcpy(dst + offset, buffer + *bufpos, rd); |
offset += rd; |
*bufpos += rd; |
*pos += rd; |
left -= rd; |
} |
if (*bufpos == *buflen) { |
/* Refill the communication buffer with a new block. */ |
ipcarg_t retval; |
int rc = async_req_2_1(phone, RD_READ_BLOCK, |
*pos / block_size, block_size, &retval); |
if ((rc != EOK) || (retval != EOK)) |
return false; |
*bufpos = 0; |
*buflen = block_size; |
} |
} |
return true; |
} |
/** @} |
*/ |
/trunk/uspace/lib/libfs/libfs.h |
---|
69,9 → 69,6 |
extern void libfs_lookup(libfs_ops_t *, fs_handle_t, ipc_callid_t, ipc_call_t *); |
extern bool libfs_blockread(int, void *, off_t *, size_t *, off_t *, void *, |
size_t, size_t); |
#endif |
/** @} |
/trunk/uspace/lib/libblock/libblock.c |
---|
0,0 → 1,147 |
/* |
* Copyright (c) 2008 Jakub Jermar |
* Copyright (c) 2008 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup libblock |
* @{ |
*/ |
/** |
* @file |
* @brief |
*/ |
#include "libblock.h" |
#include "../../srv/vfs/vfs.h" |
#include "../../srv/rd/rd.h" |
#include <errno.h> |
#include <async.h> |
#include <ipc/ipc.h> |
#include <as.h> |
#include <assert.h> |
/** Read data from a block device. |
* |
* @param phone Phone to be used to communicate with the device. |
* @param buffer Communication buffer shared with the device. |
* @param bufpos Pointer to the first unread valid offset within the |
* communication buffer. |
* @param buflen Pointer to the number of unread bytes that are ready in |
* the communication buffer. |
* @param pos Device position to be read. |
* @param dst Destination buffer. |
* @param size Size of the destination buffer. |
* @param block_size Block size to be used for the transfer. |
* |
* @return True on success, false on failure. |
*/ |
bool blockread(int phone, void *buffer, off_t *bufpos, size_t *buflen, |
off_t *pos, void *dst, size_t size, size_t block_size) |
{ |
off_t offset = 0; |
size_t left = size; |
while (left > 0) { |
size_t rd; |
if (*bufpos + left < *buflen) |
rd = left; |
else |
rd = *buflen - *bufpos; |
if (rd > 0) { |
/* |
* Copy the contents of the communication buffer to the |
* destination buffer. |
*/ |
memcpy(dst + offset, buffer + *bufpos, rd); |
offset += rd; |
*bufpos += rd; |
*pos += rd; |
left -= rd; |
} |
if (*bufpos == *buflen) { |
/* Refill the communication buffer with a new block. */ |
ipcarg_t retval; |
int rc = async_req_2_1(phone, RD_READ_BLOCK, |
*pos / block_size, block_size, &retval); |
if ((rc != EOK) || (retval != EOK)) |
return false; |
*bufpos = 0; |
*buflen = block_size; |
} |
} |
return true; |
} |
int dev_phone = -1; /* FIXME */ |
void *dev_buffer = NULL; /* FIXME */ |
block_t *block_get(dev_handle_t dev_handle, off_t offset, size_t bs) |
{ |
/* FIXME */ |
block_t *b; |
off_t bufpos = 0; |
size_t buflen = 0; |
off_t pos = offset * bs; |
assert(dev_phone != -1); |
assert(dev_buffer); |
b = malloc(sizeof(block_t)); |
if (!b) |
return NULL; |
b->data = malloc(bs); |
if (!b->data) { |
free(b); |
return NULL; |
} |
b->size = bs; |
if (!blockread(dev_phone, dev_buffer, &bufpos, &buflen, &pos, b->data, |
bs, bs)) { |
free(b->data); |
free(b); |
return NULL; |
} |
return b; |
} |
void block_put(block_t *block) |
{ |
/* FIXME */ |
free(block->data); |
free(block); |
} |
/** @} |
*/ |
/trunk/uspace/lib/libblock/libblock.h |
---|
0,0 → 1,62 |
/* |
* Copyright (c) 2008 Jakub Jermar |
* Copyright (c) 2008 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup libblock |
* @{ |
*/ |
/** |
* @file |
*/ |
#ifndef LIBBLOCK_LIBBLOCK_H_ |
#define LIBBLOCK_LIBBLOCK_H_ |
#include <stdint.h> |
#include "../../srv/vfs/vfs.h" |
typedef struct block { |
void *data; |
size_t size; |
bool dirty; |
} block_t; |
extern int dev_phone; /* FIXME */ |
extern void *dev_buffer; /* FIXME */ |
extern block_t *block_get(dev_handle_t, off_t, size_t); |
extern void block_put(block_t *); |
extern bool blockread(int, void *, off_t *, size_t *, off_t *, void *, size_t, |
size_t); |
#endif |
/** @} |
*/ |
/trunk/uspace/lib/libblock/Makefile |
---|
0,0 → 1,66 |
# |
# Copyright (c) 2005 Martin Decky |
# Copyright (c) 2007 Jakub Jermar |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
## Common compiler flags |
# |
LIBC_PREFIX = ../libc |
## Setup toolchain |
# |
include $(LIBC_PREFIX)/Makefile.toolchain |
CFLAGS += -Iinclude |
## Sources |
# |
SOURCES = \ |
libblock.c |
OBJECTS := $(addsuffix .o,$(basename $(SOURCES))) |
.PHONY: all clean depend |
all: libblock.a |
-include Makefile.depend |
clean: |
-rm -f libblock.a Makefile.depend |
find . -name '*.o' -follow -exec rm \{\} \; |
depend: |
-makedepend -f - -- $(DEFS) $(CFLAGS) -- $(SOURCES) > Makefile.depend 2> /dev/null |
libblock.a: depend $(OBJECTS) |
$(AR) rc libblock.a $(OBJECTS) |
%.o: %.c |
$(CC) $(DEFS) $(CFLAGS) -c $< -o $@ |
/trunk/uspace/srv/fs/tmpfs/tmpfs_dump.c |
---|
45,7 → 45,7 |
#include <string.h> |
#include <sys/types.h> |
#include <as.h> |
#include <libfs.h> |
#include <libblock.h> |
#include <ipc/services.h> |
#include <ipc/devmap.h> |
#include <sys/mman.h> |
70,7 → 70,7 |
tmpfs_dentry_t *node; |
uint32_t size; |
if (!libfs_blockread(phone, block, bufpos, buflen, pos, &entry, |
if (!blockread(phone, block, bufpos, buflen, pos, &entry, |
sizeof(entry), TMPFS_BLOCK_SIZE)) |
return false; |
90,8 → 90,8 |
return false; |
} |
if (!libfs_blockread(phone, block, bufpos, buflen, pos, |
fname, entry.len, TMPFS_BLOCK_SIZE)) { |
if (!blockread(phone, block, bufpos, buflen, pos, fname, |
entry.len, TMPFS_BLOCK_SIZE)) { |
ops->destroy((void *) node); |
free(fname); |
return false; |
105,8 → 105,8 |
} |
free(fname); |
if (!libfs_blockread(phone, block, bufpos, buflen, pos, |
&size, sizeof(size), TMPFS_BLOCK_SIZE)) |
if (!blockread(phone, block, bufpos, buflen, pos, &size, |
sizeof(size), TMPFS_BLOCK_SIZE)) |
return false; |
size = uint32_t_le2host(size); |
116,7 → 116,7 |
return false; |
node->size = size; |
if (!libfs_blockread(phone, block, bufpos, buflen, pos, |
if (!blockread(phone, block, bufpos, buflen, pos, |
node->data, size, TMPFS_BLOCK_SIZE)) |
return false; |
132,8 → 132,8 |
return false; |
} |
if (!libfs_blockread(phone, block, bufpos, buflen, pos, |
fname, entry.len, TMPFS_BLOCK_SIZE)) { |
if (!blockread(phone, block, bufpos, buflen, pos, fname, |
entry.len, TMPFS_BLOCK_SIZE)) { |
ops->destroy((void *) node); |
free(fname); |
return false; |
187,7 → 187,7 |
off_t pos = 0; |
char tag[6]; |
if (!libfs_blockread(phone, block, &bufpos, &buflen, &pos, tag, 5, |
if (!blockread(phone, block, &bufpos, &buflen, &pos, tag, 5, |
TMPFS_BLOCK_SIZE)) |
goto error; |
/trunk/uspace/srv/fs/tmpfs/Makefile |
---|
31,12 → 31,16 |
LIBC_PREFIX = ../../../lib/libc |
LIBFS_PREFIX = ../../../lib/libfs |
LIBBLOCK_PREFIX = ../../../lib/libblock |
SOFTINT_PREFIX = ../../../lib/softint |
include $(LIBC_PREFIX)/Makefile.toolchain |
CFLAGS += -I $(LIBFS_PREFIX) |
CFLAGS += -I $(LIBFS_PREFIX) -I $(LIBBLOCK_PREFIX) |
LIBS = $(LIBC_PREFIX)/libc.a $(LIBFS_PREFIX)/libfs.a |
LIBS = \ |
$(LIBC_PREFIX)/libc.a \ |
$(LIBFS_PREFIX)/libfs.a \ |
$(LIBBLOCK_PREFIX)/libblock.a |
## Sources |
# |
/trunk/uspace/srv/fs/fat/fat.h |
---|
197,16 → 197,6 |
bool dirty; |
} fat_node_t; |
/* TODO move somewhere else */ |
typedef struct block { |
void *data; |
size_t size; |
bool dirty; |
} block_t; |
extern block_t *block_get(dev_handle_t, off_t, size_t); |
extern void block_put(block_t *); |
extern fs_reg_t fat_reg; |
extern void fat_mounted(ipc_callid_t, ipc_call_t *); |
/trunk/uspace/srv/fs/fat/fat_fat.c |
---|
40,6 → 40,7 |
#include "fat.h" |
#include "../../vfs/vfs.h" |
#include <libfs.h> |
#include <libblock.h> |
#include <errno.h> |
#include <byteorder.h> |
#include <align.h> |
/trunk/uspace/srv/fs/fat/fat_ops.c |
---|
40,6 → 40,7 |
#include "fat_fat.h" |
#include "../../vfs/vfs.h" |
#include <libfs.h> |
#include <libblock.h> |
#include <ipc/ipc.h> |
#include <ipc/services.h> |
#include <ipc/devmap.h> |
60,48 → 61,6 |
/** List of cached free FAT nodes. */ |
static LIST_INITIALIZE(ffn_head); |
static int dev_phone = -1; /* FIXME */ |
static void *dev_buffer = NULL; /* FIXME */ |
block_t *block_get(dev_handle_t dev_handle, off_t offset, size_t bs) |
{ |
/* FIXME */ |
block_t *b; |
off_t bufpos = 0; |
size_t buflen = 0; |
off_t pos = offset * bs; |
assert(dev_phone != -1); |
assert(dev_buffer); |
b = malloc(sizeof(block_t)); |
if (!b) |
return NULL; |
b->data = malloc(bs); |
if (!b->data) { |
free(b); |
return NULL; |
} |
b->size = bs; |
if (!libfs_blockread(dev_phone, dev_buffer, &bufpos, &buflen, &pos, |
b->data, bs, bs)) { |
free(b->data); |
free(b); |
return NULL; |
} |
return b; |
} |
void block_put(block_t *block) |
{ |
/* FIXME */ |
free(block->data); |
free(block); |
} |
static void fat_node_initialize(fat_node_t *node) |
{ |
futex_initialize(&node->lock, 1); |
/trunk/uspace/srv/fs/fat/Makefile |
---|
31,12 → 31,16 |
LIBC_PREFIX = ../../../lib/libc |
LIBFS_PREFIX = ../../../lib/libfs |
LIBBLOCK_PREFIX = ../../../lib/libblock |
SOFTINT_PREFIX = ../../../lib/softint |
include $(LIBC_PREFIX)/Makefile.toolchain |
CFLAGS += -I $(LIBFS_PREFIX) |
CFLAGS += -I $(LIBFS_PREFIX) -I $(LIBBLOCK_PREFIX) |
LIBS = $(LIBC_PREFIX)/libc.a $(LIBFS_PREFIX)/libfs.a |
LIBS = \ |
$(LIBC_PREFIX)/libc.a \ |
$(LIBFS_PREFIX)/libfs.a \ |
$(LIBBLOCK_PREFIX)/libblock.a |
## Sources |
# |
/trunk/uspace/Makefile |
---|
34,6 → 34,7 |
DIRS = \ |
lib/libc \ |
lib/libfs \ |
lib/libblock \ |
lib/softint \ |
lib/softfloat \ |
srv/ns \ |