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genode/repos/libports/src/lib/exfat/init.cc

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libports: add fuse-exfat Fixes #942.
2013-11-25 15:14:59 +00:00
/*
* \brief libc_fuse_exfat
* \author Josef Soentgen
* \date 2013-11-11
*/
/*
Adjust file headers to refer to the AGPLv3
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* Copyright (C) 2013-2017 Genode Labs GmbH
libports: add fuse-exfat Fixes #942.
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*
* This file is part of the Genode OS framework, which is distributed
Adjust file headers to refer to the AGPLv3
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* under the terms of the GNU Affero General Public License version 3.
libports: add fuse-exfat Fixes #942.
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*/
/* Genode includes */
base: avoid use of deprecated base/printf.h Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
2016-07-13 17:07:09 +00:00
#include <base/log.h>
libports: add fuse-exfat Fixes #942.
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#include <fuse_private.h>
extern "C" {
#include <exfat.h>
extern struct fuse_operations fuse_exfat_ops;
struct fuse_chan *fc;
struct fuse *fh;
struct exfat ef;
}
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
bool Fuse::init_fs(void)
libports: add fuse-exfat Fixes #942.
2013-11-25 15:14:59 +00:00
{
base: avoid use of deprecated base/printf.h Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
2016-07-13 17:07:09 +00:00
Genode::log("libc_fuse_exfat: try to mount /dev/blkdev...");
libports: add fuse-exfat Fixes #942.
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int err = exfat_mount(&ef, "/dev/blkdev", "");
if (err) {
base: avoid use of deprecated base/printf.h Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
2016-07-13 17:07:09 +00:00
Genode::error("libc_fuse_exfat: could not mount /dev/blkdev");
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
return false;
libports: add fuse-exfat Fixes #942.
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}
fh = fuse_new(fc, NULL, &fuse_exfat_ops, sizeof (struct fuse_operations), NULL);
if (fh == 0) {
base: avoid use of deprecated base/printf.h Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
2016-07-13 17:07:09 +00:00
Genode::error("libc_fuse_exfat: fuse_new() failed");
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
return false;
libports: add fuse-exfat Fixes #942.
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}
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
return true;
libports: add fuse-exfat Fixes #942.
2013-11-25 15:14:59 +00:00
}
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
libports: add fuse-exfat Fixes #942.
2013-11-25 15:14:59 +00:00
void Fuse::deinit_fs(void)
{
base: avoid use of deprecated base/printf.h Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987
2016-07-13 17:07:09 +00:00
Genode::log("libc_fuse_exfat: umount /dev/blkdev...");
libports: add fuse-exfat Fixes #942.
2013-11-25 15:14:59 +00:00
exfat_unmount(&ef);
}
libports: extend FUSE implementation * add sync method: Since file systems tend to have a inbuild caching mechansim we need to sync these caches at the end of session when using the fuse_fs server. Therefore each FUSE file system port has to implement a Fuse::sync_fs() function that executes the necessary actions if requested. * add symlink check * allow to check FUSE fs initialization This changes the private API of the FUSE implementation. The init_fs method now has to return true if the initialization was successful and otherwise false. All current users of the API are also changed accordingly. Fixes #1058.
2013-12-05 10:24:16 +00:00
void Fuse::sync_fs(void) { }
bool Fuse::support_symlinks(void)
{
return false;
}
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