Commit graph

45 commits

Author SHA1 Message Date
Romain Vimont
e4d5c1ce36 Move scrcpy option structs to options.h
This will allow to define symbols in options.c without all the
dependencies of scrcpy.c.
2021-10-27 18:43:47 +02:00
Romain Vimont
ac23bec144 Expose socket interruption
On Linux, socket functions are unblocked by shutdown(), but on Windows
they are unblocked by closesocket().

Expose net_interrupt() and net_close() to abstract these differences:
 - net_interrupt() calls shutdown() on Linux and closesocket() on
   Windows (if not already called);
 - net_close() calls close() on Linux and closesocket() on Windows (if
   not already called).

This simplifies the server code, and prevents a data race on close
(reported by TSAN) on Linux (but does not fix it on Windows):

    WARNING: ThreadSanitizer: data race (pid=836124)
      Write of size 8 at 0x7ba0000000d0 by main thread:
        #0 close ../../../../src/libsanitizer/tsan/tsan_interceptors_posix.cpp:1690 (libtsan.so.0+0x359d8)
        #1 net_close ../app/src/util/net.c:211 (scrcpy+0x1c76b)
        #2 close_socket ../app/src/server.c:330 (scrcpy+0x19442)
        #3 server_stop ../app/src/server.c:522 (scrcpy+0x19e33)
        #4 scrcpy ../app/src/scrcpy.c:532 (scrcpy+0x156fc)
        #5 main ../app/src/main.c:92 (scrcpy+0x622a)

      Previous read of size 8 at 0x7ba0000000d0 by thread T6:
        #0 recv ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:6603 (libtsan.so.0+0x4f4a6)
        #1 net_recv ../app/src/util/net.c:167 (scrcpy+0x1c5a7)
        #2 run_receiver ../app/src/receiver.c:76 (scrcpy+0x12819)
        #3 <null> <null> (libSDL2-2.0.so.0+0x84f40)
2021-10-27 18:41:58 +02:00
Romain Vimont
e5ea13770b Add socket wrapper
This paves the way to store an additional "closed" flag on Windows
to interrupt and close properly.
2021-10-26 22:49:57 +02:00
Romain Vimont
3eac212af1 Use net_send() from net_send_all()
This will make net_send_all() continue to work even if net_send()
behavior is changed.
2021-10-26 22:49:45 +02:00
Romain Vimont
3adff37c2d Use sc_ prefix for sockets
Rename:
 - socket_t to sc_socket
 - INVALID_SOCKET to SC_INVALID_SOCKET
2021-10-26 22:49:45 +02:00
Romain Vimont
eb6afe7669 Move net_init() and net_cleanup() upwards
These two functions are global, define them at the top of the
implementation file. This is consistent with the header file.
2021-10-26 22:49:45 +02:00
Romain Vimont
0681480809 Add read_pipe_all()
Add a convenience function to read from a pipe until all requested data
has been read.
2021-10-26 21:30:04 +02:00
Romain Vimont
eaf4afaad9 Add command execution with redirection
Expose command execution with pipes to stdin, stdout and stderr.

This will allow to read the result of adb commands.
2021-10-26 21:30:04 +02:00
Romain Vimont
7229e3cce0 Extract util function to build a local file path
Finding a local file in the scrcpy directory may be useful for files
other than scrcpy-server in the future.
2021-10-25 16:29:43 +02:00
Romain Vimont
07d75eb336 Simplify net_send_all()
There is no need to declare the variable before the loop.
2021-10-17 16:21:37 +02:00
Romain Vimont
1d1c9f36f4 Retrieve correct error messages on Windows
For sockets functions, Windows does not store error codes in errno, so
perror() does not print any error. Use WSAGetLastError() instead.

Refs #2624 <https://github.com/Genymobile/scrcpy/issues/2624>
2021-09-09 23:03:35 +02:00
Romain Vimont
6f03022646 Fix net_send_all()
On partial writes, the final result was the number of bytes written by
the last send() rather than the total.
2021-07-15 18:16:26 +02:00
Romain Vimont
4c4d02295c Add buffering debugging tools
Output buffering and clock logs by disabling a compilation flag.
2021-07-14 14:54:22 +02:00
Romain Vimont
32e692d5d2 Replace delay by deadline in timedwait()
The function sc_cond_timedwait() accepted a parameter representing the
max duration to wait, because it internally uses SDL_CondWaitTimeout().

Instead, accept a deadline, to be consistent with
pthread_cond_timedwait().
2021-07-14 14:22:32 +02:00
Romain Vimont
ec871dd3f5 Wrap tick API
This avoids to use the SDL timer API directly, and will allow to handle
generic ticks (possibly negative).
2021-07-14 14:22:32 +02:00
Romain Vimont
099cba07f0 Rename queue to sc_queue
Add a scrcpy-specific prefix.
2021-07-14 00:35:10 +02:00
Romain Vimont
f33d37976c Fix assertion race condition in debug mode
Commit 21d206f360 added mutex assertions.

However, the "locker" variable to trace the locker thread id was read
and written by several threads without any protection, so it was racy.

Reported by TSAN.
2021-06-26 15:31:50 +02:00
Romain Vimont
488991116b Expose function to get the current log level
This will allow to avoid unnecessary processing for creating logs which
will be discarded anyway.
2021-06-20 16:04:18 +02:00
Romain Vimont
5c95d18beb Move log level conversion to log API 2021-06-20 16:04:18 +02:00
Romain Vimont
f062dfd30b Merge branch 'master' into dev 2021-05-09 11:00:30 +02:00
Romain Vimont
ffc00210e9 Add strlist_contains()
Add a function to know if a string list, using some separator, contains
a specific string.
2021-04-25 14:38:42 +02:00
Andrea Gelmini
498ad23e98 Fix typos
PR #2263 <https://github.com/Genymobile/scrcpy/pull/2263>

Signed-off-by: Romain Vimont <rom@rom1v.com>
2021-04-18 14:36:31 +02:00
Romain Vimont
c53bd4d8b6 Assert non-recursive usage of mutexes 2021-02-17 09:54:03 +01:00
Romain Vimont
21d206f360 Expose mutex assertions
Add a function to assert that the mutex is held (or not).
2021-02-17 09:54:03 +01:00
Romain Vimont
d2689fc168 Expose thread id 2021-02-17 09:54:03 +01:00
Romain Vimont
f6320c7e31 Wrap SDL thread functions into scrcpy-specific API
The goal is to expose a consistent API for system tools, and paves the
way to make the "core" independant of SDL in the future.
2021-02-17 09:54:03 +01:00
Romain Vimont
30e619d37f Replace SDL_strdup() by strdup()
The functions SDL_malloc(), SDL_free() and SDL_strdup() were used only
because strdup() was not available everywhere.

Now that it is available, use the native version of these functions.
2021-02-17 09:54:03 +01:00
Romain Vimont
97b001e7c0 Fix undefined left shift
Small unsigned integers promote to signed int. As a consequence, if v is
a uint8_t, then (v << 24) yields an int, so the left shift is undefined
if the MSB is 1.

Cast to uint32_t to yield an unsigned value.

Reported by USAN (meson x -Db_sanitize=undefined):

    runtime error: left shift of 255 by 24 places cannot be represented
    in type 'int'
2021-01-24 15:31:21 +01:00
Romain Vimont
7afd149f4b Fix file_handler process race condition
The current process could be waited both by run_file_handler() and
file_handler_stop().

To avoid the race condition, wait the process without closing, then
close with mutex locked.
2021-01-24 14:24:24 +01:00
Romain Vimont
6a50231698 Expose a single process_wait()
There were two versions: process_wait() and process_wait_noclose().

Expose a single version with a flag (it was already implemented that way
internally).
2021-01-24 14:24:18 +01:00
Romain Vimont
b8edcf52b0 Simplify process_wait()
The function process_wait() returned a bool (true if the process
terminated successfully) and provided the exit code via an output
parameter exit_code.

But the returned value was always equivalent to exit_code == 0, so just
return the exit code instead.
2021-01-22 18:29:21 +01:00
Romain Vimont
ab912c23e7 Define feature test macros in common.h
This enables necessary functions once for all.

As a consequence, define common.h before any other header.
2021-01-17 14:08:48 +01:00
Romain Vimont
59feb2a15c Group common includes into common.h
Include config.h and compat.h in common.h, and include common.h from all
source files.
2021-01-08 19:22:10 +01:00
Romain Vimont
d580ee30f1 Separate process wait and close
On Linux, waitpid() both waits for the process to terminate and reaps it
(closes its handle). On Windows, these actions are separated into
WaitForSingleObject() and CloseHandle().

Expose these actions separately, so that it is possible to send a signal
to a process while waiting for its termination without race condition.

This allows to wait for server termination normally, but kill the
process without race condition if it is not terminated after some delay.
2021-01-08 16:44:21 +01:00
Romain Vimont
821c175730 Rename process_simple_wait to process_wait
Adding "simple" in the function name brings no benefit.
2021-01-08 16:44:21 +01:00
Romain Vimont
4bd9da4c93 Split command into process and adb
The process API provides the system-specific implementation, the adb API
uses it to expose adb commands.
2021-01-08 16:44:21 +01:00
Romain Vimont
0ba74fbd9a Make scrcpy.h independant of other headers
The header scrcpy.h is intended to be the "public" API. It should not
depend on other internal headers.

Therefore, declare all required structs in this header and adapt
internal code.
2020-06-19 22:30:02 +02:00
Romain Vimont
a3ef461d73 Add cli option to set the verbosity level
The verbosity was set either to info (in release mode) or debug (in
debug mode).

Add a command-line argument to change it, so that users can enable debug
logs using the release:

    scrcpy -Vdebug
2020-05-24 22:01:51 +02:00
Romain Vimont
2a3a9d4ea9 Add util function to parse a list of integers
This will help parsing arguments like '1234:5678' into a list of
integers.
2020-01-18 17:21:00 +01:00
Romain Vimont
db6252e52b Simplify net.c
The platform-specific code for net.c was implemented in sys/*/net.c.

But the differences are quite limited, so use ifdef-blocks in the single
net.c instead.
2019-12-15 22:04:09 +01:00
Romain Vimont
61274a7cdb Factorize integer argument parsing
Add util functions for integer parsing (with tests), and factorize
integer argument parsing to avoid code duplication.
2019-12-08 21:19:53 +01:00
Yu-Chen Lin
fbc86a616c Correct coding style
Signed-off-by: Yu-Chen Lin <npes87184@gmail.com>
2019-12-04 19:24:59 +01:00
Romain Vimont
15a206b7fc Assert return value of mutex functions
Mutex functions may only fail due to a programming error.

Use assertions in debug builds, and ignore the value in release builds.
2019-11-27 21:40:58 +01:00
Romain Vimont
510caff0cd Replace SDL_assert() by assert()
SDL_assert() open a dialog on assertion failure.

There is no reason not to use assert() directly.
2019-11-27 21:19:46 +01:00
Romain Vimont
dfd0707a29 Move utilities to util/ 2019-11-24 11:53:23 +01:00