Commit graph

103 commits

Author SHA1 Message Date
Romain Vimont
74e3f8b253 Add random util
Add a user-friendly tool to generate random numbers.
2023-01-27 19:26:19 +01:00
Romain Vimont
bd1deffa70 Use current adb port (if any) for --tcpip
If the current adb port is not 5555 (typically 0 because it is not in
TCP/IP mode), --tcpip automatically executes (among other commands):

    adb tcpip 5555

In case adb was already listening on another port, this command forced
to listen on 5555, and the connection should still succeed.

But this reconfiguration might be inconvenient for the user. If adb is
already in TCP/IP mode, use the current enabled port without
reconfiguration.

Fixes #3591 <https://github.com/Genymobile/scrcpy/issues/3591>
2022-12-02 19:09:53 +01:00
Romain Vimont
ffc7b91693 Add missing include <string.h> for strlen() 2022-10-19 15:14:56 +02:00
Romain Vimont
cb46e4a64a Add missing include <string.h> for memmove() 2022-10-19 15:13:55 +02:00
Romain Vimont
1f138aef41 Add conversion from float to fixed-point i16
To encode float values between -1 and 1.

PR #3369 <https://github.com/Genymobile/scrcpy/pull/3369>
2022-08-28 15:23:08 +02:00
Romain Vimont
fd3483c837 Extract conversion from float to u16 fixed-point
PR #3369 <https://github.com/Genymobile/scrcpy/pull/3369>
2022-08-28 15:23:08 +02:00
Romain Vimont
041cdf6cf5 Rename buffer_util.h to binary.h
It will allow to expose more binary util functions not related to
buffers.

PR #3369 <https://github.com/Genymobile/scrcpy/pull/3369>
2022-08-28 15:23:08 +02:00
Romain Vimont
d19606eb0c Rename net_listen() parameter
For consistency with net_accept(), which necessarily uses a server
socket, name the net_listen() parameter "server_socket".
2022-08-17 16:40:45 +02:00
Romain Vimont
a47848f304 Detect Windows using _WIN32 in network util
For consistency, always use _WIN32 instead of a mix of __WINDOWS__ and
_WIN32.
2022-07-27 14:54:27 +02:00
Romain Vimont
fa5b2a29e9 Add missing SC_ prefix to header guards 2022-04-12 23:59:01 +02:00
Romain Vimont
71ef5cc0a9 Add missing include for vector
Include stdlib.h for realloc().
2022-02-22 21:00:43 +01:00
Romain Vimont
c070723bc8 Add sc_vector
Adapt vlc_vector [1], that I initially wrote while implementing the VLC
playlist [2].

Change the implementation to use "statement expressions" [3], which are
forbidden in VLC because "non-standard", but:
 - they are supported by gcc and clang;
 - they are already used in the scrcpy codebase;
 - they avoid implementation hacks (VLC_VECTOR_FAILFLAG_);
 - they allow a better API (sc_vector_index_of() may return the result
   without an output parameter).

PR #3035 <https://github.com/Genymobile/scrcpy/pull/3035>

[1]: 0857947aba/include/vlc_vector.h
[2]: https://blog.rom1v.com/2019/05/a-new-core-playlist-for-vlc-4
[3]: https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
2022-02-20 23:59:35 +01:00
Romain Vimont
3bb24b3926 Make intr optional for adb commands
All adb commands are executed with an "interruptor", so that they can be
interrupted on Ctrl+C.

Make this interruptor optional, so that we could call "adb kill-server"
in OTG mode. This command always returns almost immediately anyway.

Ideally, we should make all blocking calls interruptible (including
libusb calls, by using the asynchronous API), but it's a lot of work,
and in practice it works well enough.

PR #3011 <https://github.com/Genymobile/scrcpy/pull/3011>
2022-02-20 17:39:36 +01:00
Romain Vimont
85edba20e7 Enforce deadline reached on timeout
The value of sc_tick_now() has microsecond precision, but
sc_cond_timedwait() has only millisecond precision.

To guarantee that sc_tick_now() >= deadline when sc_cond_timedwait()
returns due to timeout, round up to the next millisecond.

This avoids to call a non-blocking sc_cond_timedwait() in a loop for no
reason until a target deadline during up to 1 millisecond.

Refs 682a691173
2022-02-16 18:29:30 +01:00
Romain Vimont
5c62f3419d Rename buffer util functions with sc_ prefix 2022-02-12 09:12:46 +01:00
Romain Vimont
8c50342fb2 Move SC_PRIsizet to compat.h
Define the printf format macro for size_t in compat.h so that it can be
used from anywhere.

PR #3005 <https://github.com/Genymobile/scrcpy/pull/3005>
2022-02-09 09:53:19 +01:00
Romain Vimont
6df2205cf3 Add generic LOG() macro with level parameter
One log macro was provided for each log level (LOGV(), LOGD(), LOGI(),
LOGW(), LOGE()).

Add a generic macro LOG(LEVEL, ...) accepting a log level as parameter,
so that it is possible to write logging wrappers.

PR #3005 <https://github.com/Genymobile/scrcpy/pull/3005>
2022-02-09 09:53:11 +01:00
Romain Vimont
61b6324ee9 Remove LOGC()
It is not clear when to use LOGC() rather than LOGE(). Always use
LOGE().

Moreover, enum sc_log_level has no "critical" log level.
2022-02-09 09:52:15 +01:00
Romain Vimont
137d2c9791 Remove confusing sc_str_truncate()
This util function was error-prone:
 - it accepted a buffer as parameter (not necessarily a NUL-terminated
   string) and its length (including the NUL char, if any);
 - it wrote '\0' over the last character of the buffer, so the last
   character was lost if the buffer was not a NUL-terminated string, and
   even worse, it caused undefined behavior if the length was empty;
 - it returned the length of the resulting NUL-terminated string,
   which was inconsistent with the input buffer length.

In addition, it was not necessarily optimal:
 - it wrote '\0' twice;
 - it required to know the buffer length, that is the input string
   length + 1, in advance.

Remove this function, and let the client use strcspn() manually.
2022-02-06 14:39:51 +01:00
Romain Vimont
c8d0f5cdeb Fix sc_str_truncate() documentation
The function was initially implemented to truncate lines, but was later
generalized to accept custom delimiters. The whole documentation has not
been updated accordingly.

Refs 9619ade706
2022-02-01 21:38:50 +01:00
Romain Vimont
b8d7f36ba3 Fix SC_EXIT_CODE_NONE value
The exit code on windows is stored in a DWORD, an unsigned long:
<https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/262627d8-3418-4627-9218-4ffe110850b2>

Use the max value of this type for SC_EXIT_CODE_NONE.
2022-01-29 08:05:59 +01:00
Romain Vimont
80bec70852 Add helper to log Windows system errors
It will help to log errors returned by GetLastError() or
WSAGetLastError():
 - <https://docs.microsoft.com/en-us/windows/win32/api/errhandlingapi/nf-errhandlingapi-getlasterror>
 - <https://docs.microsoft.com/en-us/windows/win32/api/winsock/nf-winsock-wsagetlasterror>
 - <https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes#system-error-codes>

Always log the errors in English to be able to read them in bug reports.
2022-01-28 09:15:18 +01:00
Romain Vimont
37124e1452 Avoid unused function warning
If HAVE_SOCK_CLOEXEC is not defined, then sc_raw_socket_close() is never
used. Add an #ifndef block to remove the warning.
2022-01-01 23:27:34 +01:00
Romain Vimont
feb250a973 Fix typos reported by codespell 2021-12-15 18:27:45 +01:00
Romain Vimont
3ada5c51bc Rename scrcpy threads
Prefix the name of threads by "scrcpy-". This improves readability in
the output of `top -H` for example.

Limit the thread names to 16 bytes, because it is limited on some
platforms.
2021-12-09 21:32:11 +01:00
Romain Vimont
682a691173 Use timers with microsecond precision
SDL only provides millisecond precision. Use system timers to get a
better precision.
2021-12-08 23:45:45 +01:00
Romain Vimont
0c0f62e4ab Use static maps to convert input events
This improves readability (hopefully).

PR #2831 <https://github.com/Genymobile/scrcpy/pull/2831>
2021-11-29 21:15:07 +01:00
Romain Vimont
b7e631791c Add util function to remove trailing '\r'
Depending on the platform and adb versions, the lines output by adb
could end with "\r\r\n". This util function helps to remove all trailing
'\r'.

PR #2827 <https://github.com/Genymobile/scrcpy/pull/2827>
2021-11-29 20:39:03 +01:00
Romain Vimont
b52f87a892 Add util function to locate a column in a string
This will help to parse the result of "adb shell ip route" to find the
device IP address.

PR #2827 <https://github.com/Genymobile/scrcpy/pull/2827>
2021-11-29 20:39:03 +01:00
Romain Vimont
f801d8b312 Expose flags for process execution
Let the caller decide if stdout and stderr must be inherited on process
creation, i.e. if stdout and stderr of the child process should be
printed in the scrcpy console.

This allows to get output and errors for specific adb commands depending
on the context.

PR #2827 <https://github.com/Genymobile/scrcpy/pull/2827>
2021-11-29 20:39:03 +01:00
Romain Vimont
b90c89766b Set CLOEXEC flag on sockets
If SOCK_CLOEXEC exists, then set the flag on socket creation.

Otherwise, use fcntl() (or SetHandleInformation() on Windows) to set the
flag afterwards.

This avoids the sockets to be inherited in child processes.

Refs #2783 <https://github.com/Genymobile/scrcpy/pull/2783>
2021-11-26 09:40:39 +01:00
Romain Vimont
904f0ae61e Check process success locally for adb commands
Remove sc_process_check_success() from the process API, it is too
specific.
2021-11-25 22:22:34 +01:00
Romain Vimont
3653fb6b15 Add OutOfMemory log helper
Add a special LOG_OOM() function to log all OutOfMemory errors (i.e.
allocations returning NULL).
2021-11-24 22:06:49 +01:00
Romain Vimont
5d17bcf1bc Wait SET_CLIPBOARD ack before Ctrl+v via HID
To allow seamless copy-paste, on Ctrl+v, a SET_CLIPBOARD request is
performed before injecting Ctrl+v.

But when HID keyboard is enabled, the Ctrl+v injection is not sent on
the same channel as the clipboard request, so they are not serialized,
and may occur in any order. If Ctrl+v happens to be injected before the
new clipboard content is set, then the old content is pasted instead,
which is incorrect.

To minimize the probability of occurrence of the wrong order, a delay of
2 milliseconds was added before injecting Ctrl+v. Then 5ms. But even
with 5ms, the wrong behavior sometimes happens.

To handle it properly, add an acknowledgement mechanism, so that Ctrl+v
is injected over AOA only after the SET_CLIPBOARD request has been
performed and acknowledged by the server.

Refs e4163321f0
Refs 45b0f8123a

PR #2814 <https://github.com/Genymobile/scrcpy/pull/2814>
2021-11-24 09:41:21 +01:00
Romain Vimont
aba1fc03c3 Add acksync helper to wait for acks
This will allow to send requests with sequence numbers to the server
and wait for acknowledgements.

PR #2814 <https://github.com/Genymobile/scrcpy/pull/2814>
2021-11-23 21:15:05 +01:00
RipleyTom
52e5181c84 Add function to parse IPv4 addresses
PR #2807 <https://github.com/Genymobile/scrcpy/pull/2807>

Signed-off-by: Romain Vimont <rom@rom1v.com>
2021-11-21 22:37:37 +01:00
Romain Vimont
ea454e9cee Add interruptible function to read from pipe
This will avoid to block Ctrl+c if the process the pipe is read from
takes too much time.
2021-11-18 19:39:11 +01:00
Romain Vimont
cb65531533 Simplify sc_str_truncate()
Use strcspn() to get the prefix length directly.
2021-11-18 19:37:53 +01:00
Romain Vimont
9619ade706 Generalize string trunctation util function
Add an additional argument to let the client pass the possible end
chars.
2021-11-18 18:48:16 +01:00
Romain Vimont
f2781a8b6d Expose util function to truncate first line
Move the local implementation from adb functions to the string util
functions.
2021-11-18 18:48:16 +01:00
Romain Vimont
de50846905 Close process on check success
The interruptible version of the function to check process success
(sc_process_check_success_intr()) did not accept a close parameter to
avoid a race condition. But as the result, the processes were not closed
at all.

Add a close parameter, and close the process separately to avoid the
race condition.
2021-11-18 18:31:36 +01:00
Romain Vimont
057c7a4df4 Move str_util to str
Simplify naming.
2021-11-14 01:22:22 +01:00
Romain Vimont
979ce64dc0 Improve string util API
Use prefixed names and improve documentation.
2021-11-14 01:22:22 +01:00
Romain Vimont
9a0bd545d5 Rename SC_INVALID_SOCKET to SC_SOCKET_NONE
For consistency with SC_PROCESS_NONE.
2021-11-14 01:22:22 +01:00
Romain Vimont
0d45c29d13 Move IPV4_LOCALHOST to net.h
This constant will be used from several files.
2021-11-14 01:22:22 +01:00
Romain Vimont
40340509d9 Add interruptor utilities
Expose wrapper functions for interrupting blocking calls, for process
and sockets.
2021-11-13 22:54:18 +01:00
Romain Vimont
e0896142db Introduce interruptor tool
An interruptor instance will help to wake up a blocking call from
another thread (typically to terminate immediately on Ctrl+C).
2021-11-13 22:53:07 +01:00
Romain Vimont
0bfa75a48b Split socket creation and connect/listen
This will allow to assign the socket to a variable before connecting or
listening, so that it can be interrupted from another thread.
2021-11-13 10:05:20 +01:00
Romain Vimont
03de9224fc Introduce process observer
Add a tool to easily observe process termination.

This allows to move this complexity out of the server code.
2021-11-13 10:02:23 +01:00
Romain Vimont
aa011832c1 Improve process API
Prefix symbols and constants names and improve documentation.
2021-11-12 22:44:37 +01:00