Mercurial > repos > blastem
view terminal.c @ 1374:8f404b1fa572
Go back to resetting the refresh counter after a DMA. Probably not quite correct as it is probably reset on VDP triggered refresh, but this is close enough for now given the general limitations with my refresh code. VDP FIFO Testing seems to be passing 100% reliably again (was occassionally failing still with the last commit)
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 23 May 2017 23:47:40 -0700 |
parents | 0433fdd9ba66 |
children | 794ba17f0716 |
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#include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <fcntl.h> #include <stdlib.h> #include <stdint.h> #include <signal.h> #include "util.h" #include "terminal.h" pid_t child; void cleanup_terminal() { kill(child, SIGKILL); unlink(INPUT_PATH); unlink(OUTPUT_PATH); } static char init_done; void force_no_terminal() { init_done = 1; } void init_terminal() { if (!init_done) { if (!(isatty(STDIN_FILENO) && isatty(STDOUT_FILENO))) { #ifndef __APPLE__ //check to see if x-terminal-emulator exists, just use xterm if it doesn't char *term = system("which x-terminal-emulator > /dev/null") ? "xterm" : "x-terminal-emulator"; #endif //get rid of FIFO's if they already exist unlink(INPUT_PATH); unlink(OUTPUT_PATH); //create FIFOs for talking to helper process in terminal app mkfifo(INPUT_PATH, 0666); mkfifo(OUTPUT_PATH, 0666); //close existing file descriptors close(STDIN_FILENO); close(STDOUT_FILENO); close(STDERR_FILENO); child = fork(); if (child == -1) { //error, oh well warning("Failed to fork for terminal spawn"); } else if (!child) { //child process, exec our terminal emulator #ifdef __APPLE__ execlp("open", "open", "./termhelper", NULL); #else execlp(term, term, "-title", "BlastEm Debugger", "-e", "./termhelper", NULL); #endif } else { //connect to the FIFOs, these will block so order is important open(INPUT_PATH, O_RDONLY); open(OUTPUT_PATH, O_WRONLY); atexit(cleanup_terminal); if (-1 == dup(STDOUT_FILENO)) { fatal_error("failed to dup STDOUT to STDERR after terminal fork"); } } } init_done = 1; } }