freetdm: refactor ftmod_gsm.c code to use proper core functions and interrupts…

freetdm: refactor ftmod_gsm.c code to use proper core functions and interrupts to wait for io and state changes

freetdm: refactor ftmod_gsm.c code to use proper core functions and interrupts…
freetdm: refactor ftmod_gsm.c code to use proper core functions and interrupts to wait for io and state changes
cc79163d · Moises Silva · de980341 · cc79163d
--- a/libs/freetdm/src/ftmod/ftmod_gsm/ftmod_gsm.c
+++ b/libs/freetdm/src/ftmod/ftmod_gsm/ftmod_gsm.c