Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8dcdb57d authored by Josh Gao's avatar Josh Gao
Browse files

adb: Mask SIGTTIN so that I/O works when backgrounded. 

SIGTTIN gets sent to the process when we attempt to read from
stdin when we're in the background, which stops the process by
default. Mask the signal so that the read returns -1 with errno
set to EIO, instead.

Change-Id: I4ae626b0670c05a1a05165539b9eed709e83d536
parent 38aee48f

adb/commandline.cpp

+9 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <base/strings.h>



#if !defined(_WIN32)

#include <signal.h>

#include <termios.h>

#include <unistd.h>

#endif
@@ -440,6 +441,14 @@ static void* stdin_read_thread(void* x) { 


    adb_thread_setname("stdin reader");



#ifndef __WIN32

    // Mask SIGTTIN in case we're in a backgrounded process

    sigset_t sigset;

    sigemptyset(&sigset);

    sigaddset(&sigset, SIGTTIN);

    pthread_sigmask(SIG_BLOCK, &sigset, nullptr);

#endif



    char raw_buffer[1024];

    char* buffer_ptr = raw_buffer;

    size_t buffer_size = sizeof(raw_buffer);