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243 Commits

Author SHA1 Message Date
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
885ab75045 drivers/lcd: Add support for creating display lists incrementally. 2018-02-17 14:48:18 -06:00
Gregory Nutt
7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Gregory Nutt
39fe6a0dff Squashed commit of the following: 
fs/nxffs:  Add partial implementation of the truncate method:  It extend files, but cannot yet shrink them.
    fs/smartfs:  Add partial implementation of the truncate method:  It extend files, but cannot yet shrink them.
    fs/fat:  Add partial implementation of the truncate method:  It extend files, but no yet shrink them.
    fs/nfs:  Add support for the truncate method to the NFS file system.
 2018-01-04 10:54:54 -06:00
Gregory Nutt
e4652bd3dc Squashed commit of the following: 
fs: Add truncate() support for userfs
    fs/unionfs:  Add truncate() support to the unionfs
    fs/tmpfs:  Add ftruncate() support to tmpfs
    syscall/: Add system call support for ftruncate()
    net/route:  Adding ftruncate() support eliminates an issue in file-based routing table management.
    fs:  Add basic framework to support truncate() and ftruncate().  The infrastructure is complete.  Now, however, the actual implementation of ftruncate() will have to be done for each file system.
 2018-01-03 16:03:56 -06:00
Gregory Nutt
cc09e77a94 fs/vfs: Fix after recent changes. write() was return negative values in errno. Noted by Jussi Kivilinna. 2017-10-18 10:17:55 -06:00
Gregory Nutt
181875f3ba fs/vfs: Add new internal OS interface nx_read(). nx_read() is functionally equivalent to read() except that it does not modify the errno variable and it is not a cancellation point. Changed all references to read() in the OS to nx_read(). 2017-10-11 12:13:41 -06:00
Gregory Nutt
a00d8e16a1 Adds OS internal function nx_write() which is functionally equivalent to write() except that it does not set the errno variable and do not cause cancellation points. 2017-10-11 10:18:30 -06:00
Gregory Nutt
af072d52bc Adds OS internal functions nx_send(), ns_recv(), and nx_recvfrom() which are functionally equivalent to send(), recv(), and recvfrom() except that they do not set the errno variable and do not cause cancellation points. 2017-10-11 09:25:43 -06:00
Gregory Nutt
536e4d7fa6 fs/vfs: Change the return value of internal function fs_getfilep(). It no longer sets the errno variable but, rather, returns errors in the same manner as other internal OS functions. 2017-10-11 08:39:19 -06:00
Gregory Nutt
aeb3944f0a fs/vfs and net/socket: fcntl() is not return success fail for F_SETFL. Reported by Jussi Kivilinna. 2017-10-06 08:27:38 -06:00
Gregory Nutt
9568600ab1 Squashed commit of the following: 
This commit backs out most of commit b4747286b1.  That change was added because sem_wait() would sometimes cause cancellation points inappropriated.  But with these recent changes, nxsem_wait() is used instead and it is not a cancellation point.

    In the OS, all calls to sem_wait() changed to nxsem_wait().  nxsem_wait() does not return errors via errno so each place where nxsem_wait() is now called must not examine the errno variable.

    In all OS functions (not libraries), change sem_wait() to nxsem_wait().  This will prevent the OS from creating bogus cancellation points and from modifying the per-task errno variable.

    sched/semaphore:  Add the function nxsem_wait().  This is a new internal OS interface.  It is functionally equivalent to sem_wait() except that (1) it is not a cancellation point, and (2) it does not set the per-thread errno value on return.
 2017-10-04 15:22:27 -06:00
Gregory Nutt
42a0796615 Squashed commit of the following: 
sched/semaphore:  Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable.  Changed all references to sem_post in the OS to nxsem_post().

    sched/semaphore:  Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable.  Changed all references to sem_destroy() in the OS to nxsem_destroy().

    libc/semaphore and sched/semaphore:  Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable.  Changed all references to sem_setprotocol in the OS to nxsem_setprotocol().  sem_getprotocol() was not used in the OS
 2017-10-03 15:35:24 -06:00
Gregory Nutt
83cdb0c552 Squashed commit of the following: 
libc/semaphore:  Add nxsem_getvalue() which is identical to sem_getvalue() except that it never modifies the errno variable.  Changed all references to sem_getvalue in the OS to nxsem_getvalue().

    sched/semaphore:  Rename all internal private functions from sem_xyz to nxsem_xyz.  The sem_ prefix is (will be) reserved only for the application semaphore interfaces.

    libc/semaphore:  Add nxsem_init() which is identical to sem_init() except that it never modifies the errno variable.  Changed all references to sem_init in the OS to nxsem_init().

    sched/semaphore:  Rename sem_tickwait() to nxsem_tickwait() so that it is clear this is an internal OS function.

    sched/semaphoate:  Rename sem_reset() to nxsem_reset() so that it is clear this is an internal OS function.
 2017-10-03 12:52:31 -06:00
Gregory Nutt
9232da4af8 fs/vfs: Remove warning generated by fcntl() 2017-10-02 14:04:50 -06:00
Gregory Nutt
e4dd33280d Squashed commit of the following: 
psock_close() and net_close() are internal OS functions and should not set the errno variable.

    psock_ioctl() and netdev_ioctl() are internal OS functions and should not set the errno variable.

    net_dupsd() and net_dupsd2() are internal OS functions and should not set the errno variable.

    net/ and fs/: net_vfcntl(), file_fcntl(), file_dup(), and file_dup2() are all internal OS interfaces and should not modify the errno value.
 2017-09-30 10:41:21 -06:00
Xiao Qin
e5c79ba1a6 Merged in x_qin/nuttx/null_check_for_open_and_write (pull request #498) 
fs/vfs:null check for path on open and buf on write

Null path check is depend on CONFIG_DEBUG_FEATURES and CONFIG_DEBUG_ASSERTIONS, added null checking so it's always performed
Added null checking on buf for write()

Approved-by: Gregory Nutt <gnutt@nuttx.org>
 2017-09-29 18:15:33 +00:00
Gregory Nutt
44d88abb83 This commit adds support for routing tables in files in a file system. This might be useful for customized, per-unit routing tables. 
There are two issues with it however:

1. Reading from file system on a per packet basis could be slow.  I think it probably should have a small, in-memory cache of most frequently used routes for good problem.

2. Currently the delroute logic is disabled due to a problem with the design.  NuttX does not currently support truncate().  Therefore, it is not possible to delete entries from the routing table file.

In this current implementation, that leaves the last entry intact at the end of the file.  An alternative design might include a tag on each record to indicate if the record is valid or not.  That would work but would add complexity to the other routing table functions.

The existing implementation is available for testing purposes only if CONFIG_EXPERIMENTAL=y.

Squashed commit of the following:

    net/route:  The current delroute design depends on file truncation.  However, NuttX does not currently support truncate.  Alternative, more complex designs are possible but not implemented.  At present the file routing table are otherwise functional but the delroute logic is disabled via CONFIG_EXPERIMENTAL.  Enable it only if you plan to fix it.

    net/route:  Fix some issues with locking routing table files.

    net/route:  Add partial implementation of delroute for the case where the routing table is in a file.

    net/route:  Add support for seeking to positions in the routing table.

    net/route: Add net_addroute_ipv4/6() using a file-based routing table.

    net/route: Add net_foreach_ipv4/4() using a file-based routing table.

    net/route:  Initial build, configuration, and fs utilies to support routing tables in a file.
 2017-09-29 08:33:36 -06:00
Gregory Nutt
7b7ca87941 fs/vfs: file_write() and file_pwrite() are internal OS interfaces and should not report errors via the errno 2017-09-28 14:49:05 -06:00
Gregory Nutt
e761b80ea7 fs/vfs: file_read() is an internal OS interface and should not errors via the errno 2017-09-28 14:14:32 -06:00
Gregory Nutt
9043b9cb6a fs/vfs: file_seek() is an internal OS interface and should not errors via the errno 2017-09-28 13:55:36 -06:00
Gregory Nutt
12c4c4c8a6 In some cases, packets are still not sent behind the router. I found that NuttX sends the ARP requests not to the router but to the target. Mistake in file net/route/netdev_router.c. From Aleksandr Kazantsev 2017-09-20 13:19:05 -06:00
Jussi Kivilinna
027a446158 poll: fix poll for regular files and block devices. Open Group documentation tells that poll (and select) support regular files and that 'Regular files shall always poll TRUE for reading and writing'. 2017-08-03 09:58:20 -06:00
Simon Piriou
643f5782aa epoll: fix epoll_wait function 2017-07-22 09:01:24 -06:00
Julien Lecoeur
f26e83d0a1 Fix -Werror=implicit-fallthrough on gcc7 2017-06-28 17:48:04 +02:00
Jim Paris
db80696d21 vfs/poll: fix timeout calculation 2017-06-09 11:37:30 -06:00
Harri Luhtala
b8b9309d2b vfs: fdopen: add missing file stream flags clearing. Clear file stream structure regardless of config options. Structure clearing is needed as previous use of stream list entry might leave fs_flags set. 2017-05-31 06:20:18 -06:00
Gregory Nutt
41680d376d Replace 'the the' with 'the' 2017-05-11 13:15:13 -06:00
Gregory Nutt
e3d865f6c2 In last changed to poll(),cConverted timeout to unsigned to eliminate the possibility of overflow of signed overflow. 2017-04-28 11:02:54 -06:00
Jussi Kivilinna
37ca797d1c vfs/poll: round timeout up to next full tick. Calling poll() with timeout less than half tick (thus MSEC2TICK(timeout) => 0) caused returning error with EAGAIN. Instead of rounding timeout down, value should be rounded up. Open Group spec for poll says: "Implementations may place limitations on the granularity of timeout intervals. If the requested timeout interval requires a finer granularity than the implementation supports, the actual timeout interval will be rounded up to the next supported value." 2017-04-28 08:42:37 -06:00
Gregory Nutt
d5207efb5a Be consistent... Use Name: consistent in function headers vs Function: 2017-04-21 16:33:14 -06:00
Gregory Nutt
7457875447 VFS poll(): Add some error handling logic 2017-04-20 19:15:17 -06:00
Gregory Nutt
d3408809e4 sendfile(): Fix error introduced with commit ff73be870e. Noted by Maciej Wójcik 2017-03-05 11:50:34 -06:00
Gregory Nutt
ee8abb8160 FS: Don't build block driver proxy if PSEUDOFS_OPERATIONS are disabled. 2017-03-04 08:25:20 -06:00
Gregory Nutt
0a192361de Revert "FS: Fix backward conditional logic that prevent unlink() from building in some configurations." 
Oops.  It was not backward.  Enable == !Disable.  Negative logic is confusing.

This reverts commit 1fcf353e89.
 2017-03-04 08:16:46 -06:00
Gregory Nutt
1fcf353e89 FS: Fix backward conditional logic that prevent unlink() from building in some configurations. 2017-03-04 07:48:56 -06:00
Masayuki Ishikawa
e239961be8 Fix open() a block device with CONFIG_DISABLE_PSEUDOFS_OPERATIONS=y 2017-03-01 13:43:12 +09:00
Gregory Nutt
4fa389898a Fix a warning when STDIO buffering is disabled 2017-02-27 11:06:13 -06:00
Gregory Nutt
a78593d66d fstatfs: Rethink last commit. Add verification that the file descriptor refers to an open file. This also should eliminate the warning while doing something useful. 2017-02-22 14:17:14 -06:00
Gregory Nutt
8c7ec7419a Eliminate a warning 2017-02-22 14:04:06 -06:00
Gregory Nutt
656935ed7e C library: Add fstatfs(); fix a reference counting error in fstat(). 2017-02-17 08:35:59 -06:00
Gregory Nutt
2325ea4a45 statfs() should not fail on path '/' 2017-02-14 06:30:35 -06:00
Gregory Nutt
10378bb10b fstat: Add fstat() support to nfs. 2017-02-13 10:07:43 -06:00
Gregory Nutt
4748e9352d fstat: Add fstat() support to romfs 2017-02-12 16:25:12 -06:00
Gregory Nutt
c5a8e96dbc Add basic fstat() support. Now all that is needed is to modify ALL of the file systems. 2017-02-12 12:48:24 -06:00
Gregory Nutt
3055025e00 rename(): Correct more issues. (1) Move to the root directory in the pseudo file system, (2) Fix path naming calculation when the path is the root directory of a mounted file system, and (3) dont't do the rename if the source and destination of the rename are the same. 2017-02-12 08:37:28 -06:00
Gregory Nutt
e20e9f0fe4 Update a comment 2017-02-11 18:55:13 -06:00
Gregory Nutt
2d11d8f1a4 rename: An inode with no operations should be treated like a directory for the purposes of rename 2017-02-11 12:02:50 -06:00
Gregory Nutt
bd7d3a92f5 Add logic to VFS rename: If target of rename exists and is a directory, then the source file should be moved 'under' the target directory. POSIX also requires that if the target is a file, then that old file must be deleted. 2017-02-11 11:18:30 -06:00
Gregory Nutt
af5a8e73d3 VFS rename: Fix issues with rename to subdirectories and some softlink issues. 2017-02-11 10:08:23 -06:00
Gregory Nutt
1d290c2b37 setvbuf: Add support for disabling I/O buffering. Initially cut; untested. 2017-02-09 09:24:44 -06:00
Gregory Nutt
a92887c63d setvbuf: Correct some errors detected by code review. 2017-02-08 14:06:29 -06:00
Gregory Nutt
9f859774a1 setvbuf: Add support for configuration of line buffering. 2017-02-08 11:28:24 -06:00
Gregory Nutt
51a14c9b2f C Library: Add a very limited, first step implementation of setvbuf(). This is a collaborative effort. Alan Carvalho de Assis did the initial prototype. 2017-02-08 10:33:18 -06:00
Gregory Nutt
2d2fe301cb Update some comments; link counter can be uint8_t; Add a debug assertion. 2017-02-07 15:50:54 -06:00
Gregory Nutt
b758176963 stat(): Add logic to avoid infinite recursive in circular paths containing soft links. 2017-02-07 12:32:45 -06:00
Gregory Nutt
aefe32d33f soft links: Fix a memory leak by correcting a reference counting problem. 2017-02-05 15:14:16 -06:00
Gregory Nutt
45fd98da88 Add macros support that will eventually allow dynamic allocation of strings need to support soft links. 2017-02-05 14:25:45 -06:00
Gregory Nutt
8f2c7198ed inode_find: Now takes struct inode_desc_s type as input. This was necessary before that structure includes some data storage. It was used within inode_find(), but that means that the life of the data was the life of inode_find(). That data must persist longer. It is now provided by the caller so that the life of the data persists for the entire life of the caller. 2017-02-05 09:51:42 -06:00
Gregory Nutt
0c9935f8ac FS: Remove inode_find_nofollow. Instead provide a bool nofollow argument to inode_find. 2017-02-04 11:46:54 -06:00
Gregory Nutt
36704b7d9c FS: Argument is now a structure describing the search. 2017-02-04 11:21:44 -06:00
Gregory Nutt
70dcec7df7 readlink: Fix bugs from initial testing 2017-02-03 14:12:24 -06:00
Gregory Nutt
4417e74977 Soft links: Add an (untested) implementation of readlink() 2017-02-03 13:57:12 -06:00
Gregory Nutt
60ba5a5261 Soft links: Fix logic and remove kludge of last commit. Rename inode_dereference() as inode_linktarget() and make global. 2017-02-03 13:22:33 -06:00
Gregory Nutt
7c59e05305 FS: Separate inode_search() and inode_free() from fs_inode.c and put in separate files. Flesh out symbolic link logic in stat() and readdir(). There are still some issues with stat(). 2017-02-03 11:23:57 -06:00
Gregory Nutt
372e399bbc Fix a typo 2017-02-03 07:36:25 -06:00
Gregory Nutt
b39d962021 Soft links: Update Documentation, rename file, add system calls 2017-02-02 17:11:08 -06:00
Gregory Nutt
35d738d85f Soft links: Fix compile problems on first build with soft links enabled. 2017-02-02 15:24:39 -06:00
Gregory Nutt
bdc002fadc Finish implementation of soft links. 2017-02-02 13:01:21 -06:00
Gregory Nutt
92305e400a Soft links: Initial, incompete implementation 2017-02-02 10:39:41 -06:00
Gregory Nutt
b52e4e5ecd Move cancellation point definitions to their own header file. 2016-12-10 09:08:26 -06:00
Gregory Nutt
bc3ca25cc7 Cancellation points: Close up some logic to eliminte some race conditions. 2016-12-10 08:36:58 -06:00
Gregory Nutt
03a58b2ebc write(): Fix a misplaced #endif 2016-12-09 18:12:42 -06:00
Gregory Nutt
05f61def6a Fix warning and link error due to missing header file. 2016-12-09 17:02:27 -06:00
Gregory Nutt
3eba0acb1c More cancellation points. 2016-12-09 13:49:36 -06:00
Gregory Nutt
c9ca97b4b5 cancellation points are basically function. More tested is needed and additional cancellation points must be implemented before this can be merged back to master. 2016-12-09 12:01:18 -06:00
Gregory Nutt
dbbe46a2bc fs: Disable priority inheritance on all semaphores used for signaling 2016-11-03 12:23:31 -06:00
Alan Carvalho de Assis
8fa14b8fed Fix poll-related compile issues introduced with recent PTY changes 2016-07-16 07:03:38 -06:00
Gregory Nutt
11fe9378df Fix some warnings 2016-07-16 07:02:06 -06:00
Gregory Nutt
bcb6095f1f Add an assertion 2016-07-15 17:47:00 -06:00
Gregory Nutt
6a75f2df89 PTY: Add some encode to reduce the likely of misinterpreting the return value of the file open() method 2016-07-15 17:13:21 -06:00
Gregory Nutt
4b1553d3ad PTY: Fix some tricky issues. Now seems to be working. A lot more testing is needed 2016-07-15 14:29:32 -06:00
Gregory Nutt
9ecd558002 Add the correct implementation of the file_poll() function 2016-07-15 11:34:08 -06:00
Gregory Nutt
6e6c04f778 Rename file_poll as fdesc_poll. The file_ namespace is used for other things. 2016-07-15 11:21:11 -06:00
Gregory Nutt
2689645b97 VFS ioctl() again. Per comments from David Sidrane, file_ioctl() should not return success if the ioctl method is not supported. It probably should return ENOTTY in that case. 2016-07-09 07:23:12 -06:00
Sagitta Li
1925df8faa Fix some recently introduced errors 2016-07-09 06:51:07 -06:00
Gregory Nutt
02b91d9880 Add a SYSLOG character device that can be used to re-direct output to the SYSLOG 2016-07-05 12:58:18 -06:00
Gregory Nutt
a39ce80add SYSLOG logic should use existing file interfaces, not re-invent them. 2016-07-05 12:12:44 -06:00
Gregory Nutt
ad2f7b0119 fs/: Change some *err() message to *info() messages if what was a *dbg() message does not indicate and error condition. 2016-06-11 17:14:02 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
86b79b33cf Reserver the name 'err' for other purposes 2016-06-11 14:40:07 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
001715d57b FS: Add logic to detach a file structure from a file descriptor. This is for use only within the OS. It permits an open file or driver to be used across multiple threads. 2016-05-26 09:41:50 -06:00
Gregory Nutt
aa7a981674 Update some comments 2016-05-26 08:37:40 -06:00
Gregory Nutt
3f731241cb fs/inode/, fs/vfs/, and sched/task/: File and socket descriptors are no longer allocated for kernel threads. They must use SYSLOG for output and the low-level psock interfaces for network I/O. This saves a little memory which might be important for small footprint configurations. 2016-04-14 10:14:38 -06:00
Gregory Nutt
9008308b64 Remove some block comments before empty code sections 2016-04-11 18:16:04 -06:00
Gregory Nutt
0fb035f76b Standardize some naming in code section comments 2016-02-21 18:09:04 -06:00
Gregory Nutt
4a59ff34e9 Update submodules 2016-01-28 09:53:47 -06:00
Gregory Nutt
7d6c2d150d fs/vfs/fs_poll.c: Fix handling of sem_tickwait() return value sem_tickwait() does not return an -1+errno, it returns a negated errno value. Noted by Freddie Chopin. 2016-01-27 13:42:39 -06:00
Gregory Nutt
f348e68069 Update to use 64-bit timer when available 2016-01-21 11:54:26 -06:00
Gregory Nutt
08213f830d poll() and select() should not be built if poll() is disabled 2015-12-02 05:30:52 -06:00
Gregory Nutt
006528b144 Add support for freopen() 2015-11-22 08:39:17 -06:00
Gregory Nutt
84a5f846c9 open() has been extended. You can now open block drivers and access them just as you can character drivers. For example, you can hexdump a block device. 2015-11-21 11:24:55 -06:00
Gregory Nutt
c70987e551 nuttx/fs: Fix some spacing and alignment issues 2015-10-11 11:39:29 -06:00
Gregory Nutt
0b12dbf95d Fix some spacing problems 2015-10-04 15:04:00 -06:00
Gregory Nutt
5b51a9fcdd Standardize the width of all comment boxes in C files 2015-10-02 17:43:18 -06:00
Gregory Nutt
cb9e27c3b0 Standardize naming used for public data and function groupings 2015-10-02 16:30:35 -06:00
Gregory Nutt
cc7130b836 Correct a reference counting error in mq_open() 2015-09-23 10:34:08 -06:00
Anton D. Kachalov
8d57be2b6f Eliminate compilation warnings 
Signed-off-by: Anton D. Kachalov <mouse@yandex-team.ru>
 2015-08-26 00:14:50 +03:00
Gregory Nutt
dd7ffa481c Fix a spelling error in a comment 2015-08-14 08:22:03 -06:00
Gregory Nutt
48107bf073 poll() now returns POLLERR for any file descriptor that returns a failure during the poll setup 2015-08-13 14:58:52 -06:00
- Max Neklyudov
3f8a084d01 fs/vfs/fs_poll.c: use sem_tickwait instead of sem_timedwait 2015-08-13 14:28:31 -06:00
Gregory Nutt
422ea4f673 Another epoll() change: Should not call printf from inside the OS 2015-08-10 10:41:58 -06:00
Gregory Nutt
c74dc5f83f Changes from review epoll() implementation for consistency with NuttX naming and coding style 2015-08-10 10:38:41 -06:00
Anton D. Kachalov
fd07043180 Add simple epoll' wrapper around poll' 
Signed-off-by: Anton D. Kachalov <mouse@yandex-team.ru>
 2015-08-10 18:15:24 +03:00
Gregory Nutt
fca919f3d2 Networking: Fix some compilation issues noted with network is build with CONFIG_BUILD_KERNEL 2015-07-05 11:18:56 -06:00
Gregory Nutt
3c1af2feed Local sockets: Add poll support for Unix stream sockets. From Jussi Kivilinna. 2015-05-12 07:41:12 -06:00
Gregory Nutt
157ac4fb59 vfs: poll: fix resource leak and memory corruption. From Jussi Kivilinna. 2015-05-04 09:09:09 -06:00
Gregory Nutt
127951e029 Fix places where the errno value was being overwritten by subsequent actions so that the returned errno value was incorrect. From Max Neklyudov. 2015-02-25 07:45:04 -06:00
Gregory Nutt
cded7ea682 Fix some time value changes; mostly changing greater than 1000000000 to greater than or equal to 1000000000. From Juha Niskanen 2015-02-20 07:07:36 -06:00
Gregory Nutt
f357897b6c Some files that now include sys/time.h should no longer include timer.h 2015-02-15 16:38:18 -06:00
Gregory Nutt
d6704a1cd7 Suffer the consequences of moving struct timeval to its correct location 2015-02-15 15:18:35 -06:00
Gregory Nutt
38781d308e VFS: New block driver unlink support is dependent on mountpoint support 2015-01-31 17:16:30 -06:00
Gregory Nutt
eb1aca3e46 Add an unlink method to block driver interface. Same motivataion as for the same modification to the character driver interface 2015-01-31 13:19:23 -06:00
Gregory Nutt
62e588a0a4 VFS: Add an unlink method to the character driver interface. This is important because if the character driver inode is unlinked and there are no open references to the driver, then the driver resources will be stranded. On the unlink call, the driver has the opportunity (1) check if there an any open references, and (2) if not free the driver resources 2015-01-31 11:31:34 -06:00
Gregory Nutt
936e4e529d Don't build pread()/pwrite() if file system support is disabled 2014-12-28 15:20:41 -06:00
Gregory Nutt
58ce5653fb Fix a typo in a recent commit 2014-12-08 08:28:50 -06:00
Gregory Nutt
8bd5556b47 Fix compilation errors if CONFIG_DISABLE_MOUNTPOINT is selected 2014-12-08 07:14:31 -06:00
Gregory Nutt
7ad7163bd3 Updated comments 2014-11-29 17:39:40 -06:00
Gregory Nutt
e31d5125ae Add support for a variadic ioctl() function. The ioctl() interface is a non-standard, Unix interface. NuttX has always used the older, three-parameter version. Most contemporary systems now, however, use a variadic form of the ioctl() function. Added an option to insert a shim layer to adapt the three-parameter ioctl() to use the variadic interface form. Internally, the ioctl handling is the same three-parameter logic. The only real complexity to the shim is in how the system calls must be handled. 2014-11-29 10:53:22 -06:00
Gregory Nutt
71d27ec3da apps/examples/bridge: Add host-side test driver 2014-11-21 08:20:25 -06:00
Gregory Nutt
6eee578317 vfs/poll: add proper handling for sem_timedwait errnos. From Jussi Kivilinna 2014-11-21 06:38:26 -06:00
Gregory Nutt
bee3640829 Simplifed semaphore wait logic in poll() 2014-11-19 09:49:11 -06:00
Gregory Nutt
4448cc43db poll() was not waking up from signals (for example mq_notify() events). 
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>
 2014-11-19 09:31:51 -06:00
Gregory Nutt
839d3f2204 Cosmetic. Fix some conditional logic in some conditioned out code 2014-11-02 17:26:38 -06:00
Gregory Nutt
d914f3ceec Major structure of file system functions to better support asynchronous I/O. Respository should not be trusted until I have a chance to verify everything 2014-10-06 10:53:25 -06:00
Gregory Nutt
6d33cd329d First pread/pwrite typo fixes 2014-10-04 07:39:30 -06:00
Gregory Nutt
948be542a1 Add pread() and pwrite() 2014-10-04 07:31:13 -06:00
Gregory Nutt
ae90309b36 Move fs/fs.h to fs/inode/inode.h and some to fs/driver/driver.h 2014-09-29 07:14:38 -06:00
Gregory Nutt
1b2729e35e More testing, bugfixes and integration of VFS-based named semaphores 2014-09-28 17:30:42 -06:00
Gregory Nutt
650a0d0615 Completes VFS-based named semaphore implemetation. Still a little buggy 2014-09-28 15:58:56 -06:00
Gregory Nutt
8a6a202c6d straighten out files in some Make.defs files 2014-09-28 12:26:22 -06:00
Gregory Nutt
ff73be870e Move renaming files in fs/. to fs/vfs/. (Don't all belong there) 2014-09-28 11:46:11 -06:00