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40 Commits

Author SHA1 Message Date
Leon Varga ffbfc5c76b Open the file descriptor of a serial port on POSIX systems exclusively 
This fixes bug #1510.
 2020-03-26 23:57:33 +01:00
Martin Ling 2be41b1265 Fix building on Cygwin. 
There were two issues: first, feature test macros were only defined
for __linux__, so defintions we needed were not included. Enable the
same feature test macros for __CYGWIN__.

Second, the Cygwin headers do not define TIOCOUTQ, needed to use
ioctl() to get the number of bytes in the output queue. Return
SP_ERR_SUPP on Cygwin for this operation.

This fixes bug #963.
 2020-01-26 21:21:21 +01:00
Martin Ling e919e2efaa Adjust headers and include ordering for MSVC support. 2020-01-24 05:39:12 +00:00
Martin Ling fdbb55ae1e windows: Don't try to include <unistd.h>. 
This should enable compatibility with MSVC.
 2020-01-23 03:35:47 +00:00
Martin Ling e9d78d82c4 windows: Use a fixed worst-case WRITEFILE_MAX_SIZE. 
This saves needing to include and isolate the DDK headers.
 2020-01-23 03:35:47 +00:00
Martin Ling 39acdc47db Move timing routines to separate file. 2020-01-20 04:33:24 +00:00
Martin Ling 3317d678de Support timing helpers on Windows. 2020-01-20 04:31:59 +00:00
Martin Ling 9a7945af84 Abstract all time handling operations. 2020-01-20 04:31:59 +00:00
Martin Ling abd31fd9f9 android: Fix build compatibility with NDK platform 21 and up. 
In platforms 21 and higher of the NDK, linux/serial.h is available,
which it was not before. This broke the build, because the configure
script would detect the availability of 'struct serial_struct' in that
header and set HAVE_STRUCT_SERIAL_STRUCT, but the #ifndef __ANDROID__
in libserialport_internal.h stopped us actually including the header.

This change fixes things to build with all versions of the NDK, and is
tested with builds for arm from versions 9 to 24.

Version 21 also added availability of tcdrain(), so we also use that
where available, and only use the direct ioctl() method on NDK < 21.

Fixes #1078.
 2020-01-04 23:00:17 +00:00
Martin Ling 277f832a6a Define _POSIX_C_SOURCE to 199309L to get clock_gettime(). 2020-01-04 18:27:25 +01:00
Christian Seiler fa106ef155 Use O_CLOEXEC where available 
Ensures that the file descriptor is (by default) not passed to
subprocesses spawned by applications using libserialport.

This fixes bug #1051.
 2020-01-04 18:21:35 +01:00
Martin Ling 192e77492a Use mach_absolute_time() on OSX without clock_gettime(). 
This should fix #759 for OSX versions below 10.12.
 2019-12-28 22:02:19 +01:00
Martin Ling f40ea9d461 Use clock_gettime(CLOCK_MONOTONIC) if available. 
Should fix #759 except on OSX versions below 10.12, which don't
have clock_gettime.
 2019-12-28 22:02:19 +01:00
Martin Ling b457865b8f windows: Use architecture-specific size limit for WriteFile calls. 2019-12-28 20:43:22 +01:00
Martin Ling 39df7833f7 windows: Use an adaptively sized buffer for nonblocking writes. 2019-12-28 20:43:22 +01:00
Stefan Tauner 15541ebd78 Remove redundant inclusions of limits.h 
The first one would be included for Windows too which seems to be
an error. The second one is obviously redundant.
 2017-09-13 19:27:50 +02:00
Stefan Tauner 95bad38c5b Canonicalize symlinks in portnames 
This allows users to supply symlinks created e.g. by udev rules instead
of the actual device names.
 2017-09-13 19:27:50 +02:00
Martin Ling 6c8115820d Linux: fix for alpha where BOTHER is not defined. 
Fixes bug #363.
 2017-03-19 12:16:49 +00:00
Wolfram Sang 4d8195fe3f libserialport_internal: use new macro to enable timeradd, etc. 
Since glibc 2.20, the usage of _BSD_SOURCE is deprecated. Fix it like
described here:

https://sourceware.org/glibc/wiki/Release/2.20#Deprecation_of__BSD_SOURCE_and__SVID_SOURCE_feature_macros

This fixes bug #716.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 2015-12-29 01:16:28 +01:00
Martin Ling 127d8d0ce7 sp_wait: Avoid overflow of timeout parameter to poll(). 2015-10-13 15:04:03 +01:00
Daniel Elstner 1a584c45b0 Build: Include config.h first in all source files 2015-09-13 20:04:31 +02:00
Daniel Elstner f1c916ede1 Build: Clean up configure.ac and Makefile.am 
Among other things, rename some config defines so we can take
advantage of standard Autoconf macros.
 2015-08-26 21:55:10 +02:00
Uwe Hermann 613c48f191 Fix a compiler warning when -Wshadow is used. 
CC       serialport.lo
  In file included from ../serialport.c:25:0:
  ../serialport.c: In function 'get_config':
  ../libserialport_internal.h:227:25: warning: declaration of 'ret' shadows a previous local [-Wshadow]
   #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0)
                           ^
  ../serialport.c:1566:3: note: in expansion of macro 'TRY'
     TRY(get_baudrate(port->fd, &config->baudrate));
     ^
  ../serialport.c:1543:6: warning: shadowed declaration is here [-Wshadow]
    int ret = get_flow(port->fd, data);
        ^

Also, add -Wshadow to the list of default compiler options.
 2015-04-18 21:54:42 +02:00
Uwe Hermann e019e72ec0 Fix a compiler warning. 
This fixes the following scan-build warning:

  serialport.c: In function 'sp_list_ports':
  serialport.c:354:1: warning: control reaches end of non-void function [-Wreturn-type]
 2015-04-03 20:50:22 +02:00
Uwe Hermann b344a40bb2 Fix indentation of a switch(). 2015-04-03 17:51:47 +02:00
Martin Ling 47fcf8ec85 windows: Revise management of WaitCommEvent() operations. 
This fixes (at least parts of) bug #341.
 2015-03-29 22:18:46 +02:00
Uwe Hermann 6c6aebe78c Make std_baudrates[] static (only used in one file). 2015-03-26 23:57:56 +01:00
Uwe Hermann dc422c04af Various cosmetic and consistency fixes. 2015-03-26 23:57:56 +01:00
Uwe Hermann 2b40f81454 libserialport_internal.h: Add #include guard. 2015-03-26 23:57:56 +01:00
Martin Ling 7c081505e5 Generate a config.h rather than passing defines on command line. 
Fixes bug #553.
 2015-03-24 23:15:32 +00:00
Martin Ling 59182fbbbf linux: Check for BOTHER macro at configure time. 
This fixes bug #363.
 2014-11-01 18:36:09 +01:00
Martin Ling 78940e6921 windows: Fix compile issues with multiply or not defined GUIDs. 
This fixes bug #416.
 2014-09-25 23:04:06 +02:00
Michael B. Trausch d179da05c0 windows: Include proper GUID defining header to fix build. 
The initguid.h header must appear early or it does not have
an effect, at least on cross-build from Linux.
 2014-09-07 18:51:04 +02:00
Aurelien Jacobs 653cef3ab1 linux: remove readlinkat() dependency 2014-09-04 20:13:55 +02:00
Martin Ling c51b846eee linux: Define feature macros to get required functions. 
This is needed to build with -std=c99.
 2014-08-24 14:06:21 +01:00
Martin Ling 7890cef6cf Revise debug macros to work in strict C99. 2014-08-24 14:06:21 +01:00
Martin Ling 9caa2e86aa Specialise RETURN_VALUE macro into RETURN_{INT,STRING,POINTER}. 
This avoids the need to pass the required format string on every
call and also eliminates the need for the non-standard typeof() call.
 2014-08-24 13:31:20 +01:00
Aurelien Jacobs 970f279ae4 Introduce SP_API/SP_PRIV to mark visibility of functions. 2014-07-02 14:43:32 +02:00
Aurelien Jacobs 48a4076f69 Move list_ports() implementations to OS-specific files. 2014-06-14 01:28:49 +02:00
Martin Ling e33dcf90a0 Tidy up and split most OS-specific code to separate files. 2014-06-11 15:10:29 +01:00