sigsuspend during gpgme_engine_check_version

Tyler Retzlaff list at
Tue May 17 11:36:53 CEST 2005

I don't have any significant experience with threaded programming but 
maybe someone can tell me whats going on here.  During 
gpgme_engine_check_version the gpgme thread (I think) ends up it 
sigsuspend() waiting for a signal.  (A gdb backtrace follows)

some background about the application:
The application using gpgme is heavily threaded (though only one 
"worker" thread is accessing the gpgme library).  In addition the 
application catches most signals (perhaps a source of the problem?)

Anyway, since at the point this happens only one thread is normally 
active this call to gpgme_engine_check_version causes the entire app to 
hang.  I'm not sure if I have to kick gpgme in the guts somehow to get 
things moving... advice would be good.

0x42028d69 in sigsuspend () from /lib/i686/
(gdb) bt
#0  0x42028d69 in sigsuspend () from /lib/i686/
#1  0x4034e108 in __pthread_wait_for_restart_signal () from 
#2  0x4034e8d3 in pthread_onexit_process () from /lib/i686/
#3  0x4034e744 in pthread_kill_other_threads_np () from 
#4  0x420ae6b5 in execve () from /lib/i686/
#5  0x420ae742 in execv () from /lib/i686/
#6  0x40034bf6 in _gpgme_io_spawn (path=0x40037efb "/usr/bin/gpg", 
argv=0xfffffffc, fd_child_list=0x40037efb, fd_parent_list=0x540b6f7c) at 
#7  0x400363d5 in _gpgme_get_program_version (file_name=0x40037efb 
"/usr/bin/gpg") at version.c:184
#8  0x40031d64 in gpg_get_version () at rungpg.c:236
#9  0x40031072 in engine_get_version (proto=1108517584) at engine.c:78
#10 0x400310ff in gpgme_engine_check_version (proto=1073970939) at 
#11 0x08216e91 in CEncryptionThread (this=0x8692768, esb=0x41fdd528) at 
#12 0x082149f4 in io::CEncryptedStreamBuffer::open(char const*, 
std::_Ios_Openmode) (this=0x41fdd528, file=0x83ddb8c 
"/var/spool/files/xyz.agf", mode=16)
     at /development/CEncryptedStreamBuffer.cpp:103
#13 0x08213d38 in io::CEncryptedStream::open(char const*, 
std::_Ios_Openmode) (this=0x41fdd508, file=0x83ddb8c 
"/var/spool/files/xyz.agf", mode=16)
     at /development/CEncryptedStream.cpp:28



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