diff options
Diffstat (limited to 'erts/etc/unix/run_erl.c')
| -rw-r--r-- | erts/etc/unix/run_erl.c | 111 |
1 files changed, 83 insertions, 28 deletions
diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c index 4bb148df98..8db8e09bee 100644 --- a/erts/etc/unix/run_erl.c +++ b/erts/etc/unix/run_erl.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2009. All Rights Reserved. + * Copyright Ericsson AB 1996-2011. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -75,6 +75,9 @@ #ifdef HAVE_SYS_IOCTL_H # include <sys/ioctl.h> #endif +#if defined(__sun) && defined(__SVR4) +# include <stropts.h> +#endif #include "run_erl.h" #include "safe_string.h" /* sn_printf, strn_cpy, strn_cat, etc */ @@ -218,6 +221,8 @@ int main(int argc, char **argv) char *p, *ptyslave=NULL; int i = 1; int off_argv; + int calculated_pipename = 0; + int highest_pipe_num = 0; program_name = argv[0]; @@ -295,10 +300,10 @@ int main(int argc, char **argv) if(*pipename && pipename[strlen(pipename)-1] == '/') { /* The user wishes us to find a unique pipe name in the specified */ /* directory */ - int highest_pipe_num = 0; DIR *dirp; struct dirent *direntp; + calculated_pipename = 1; dirp = opendir(pipename); if(!dirp) { ERRNO_ERR1(LOG_ERR,"Can't access pipe directory '%s'.", pipename); @@ -319,28 +324,37 @@ int main(int argc, char **argv) PIPE_STUBNAME, highest_pipe_num+1); } /* if */ - /* write FIFO - is read FIFO for `to_erl' program */ - strn_cpy(fifo1, sizeof(fifo1), pipename); - strn_cat(fifo1, sizeof(fifo1), ".r"); - if (create_fifo(fifo1, PERM) < 0) { - ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1); - exit(1); - } - - /* read FIFO - is write FIFO for `to_erl' program */ - strn_cpy(fifo2, sizeof(fifo2), pipename); - strn_cat(fifo2, sizeof(fifo2), ".w"); - - /* Check that nobody is running run_erl already */ - if ((fd = open (fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { - /* Open as client succeeded -- run_erl is already running! */ - fprintf(stderr, "Erlang already running on pipe %s.\n", pipename); - close(fd); - exit(1); - } - if (create_fifo(fifo2, PERM) < 0) { - ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2); - exit(1); + for(;;) { + /* write FIFO - is read FIFO for `to_erl' program */ + strn_cpy(fifo1, sizeof(fifo1), pipename); + strn_cat(fifo1, sizeof(fifo1), ".r"); + if (create_fifo(fifo1, PERM) < 0) { + ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1); + exit(1); + } + + /* read FIFO - is write FIFO for `to_erl' program */ + strn_cpy(fifo2, sizeof(fifo2), pipename); + strn_cat(fifo2, sizeof(fifo2), ".w"); + + /* Check that nobody is running run_erl already */ + if ((fd = open (fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { + /* Open as client succeeded -- run_erl is already running! */ + close(fd); + if (calculated_pipename) { + ++highest_pipe_num; + strn_catf(pipename, sizeof(pipename), "%s.%d", + PIPE_STUBNAME, highest_pipe_num+1); + continue; + } + fprintf(stderr, "Erlang already running on pipe %s.\n", pipename); + exit(1); + } + if (create_fifo(fifo2, PERM) < 0) { + ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2); + exit(1); + } + break; } /* @@ -864,8 +878,12 @@ static int open_pty_master(char **ptyslave) /* Use the posix_openpt if working, as this guarantees creation of the slave device properly. */ -#ifdef HAVE_WORKING_POSIX_OPENPT +#if defined(HAVE_WORKING_POSIX_OPENPT) || (defined(__sun) && defined(__SVR4)) +# ifdef HAVE_WORKING_POSIX_OPENPT if ((mfd = posix_openpt(O_RDWR)) >= 0) { +# elif defined(__sun) && defined(__SVR4) + if ((mfd = open("/dev/ptmx", O_RDWR)) >= 0) { +# endif if ((*ptyslave = ptsname(mfd)) != NULL && grantpt(mfd) == 0 && unlockpt(mfd) == 0) { @@ -973,16 +991,53 @@ static int open_pty_master(char **ptyslave) static int open_pty_slave(char *name) { int sfd; -#ifdef DEBUG struct termios tty_rmode; -#endif if ((sfd = open(name, O_RDWR, 0)) < 0) { return -1; } +#if defined(__sun) && defined(__SVR4) + /* Load the necessary STREAMS modules for Solaris */ + if ((ioctl(sfd, I_FIND, "ldterm")) < 0) { + ERROR0(LOG_ERR, "Failed to find ldterm STREAMS module"); + return -1; + } + if (ioctl(sfd, I_PUSH, "ptem") < 0) { + ERROR0(LOG_ERR, "Failed to push ptem STREAMS module"); + return -1; + } + if (ioctl(sfd, I_PUSH, "ldterm") < 0) { + ERROR0(LOG_ERR, "Failed to push ldterm STREAMS module"); + return -1; + } + if (ioctl(sfd, I_PUSH, "ttcompat") < 0) { + ERROR0(LOG_ERR, "Failed to push ttcompat STREAMS module"); + return -1; + } +#endif + + if (getenv("RUN_ERL_DISABLE_FLOWCNTRL")) { + if (tcgetattr(sfd, &tty_rmode) < 0) { + fprintf(stderr, "Cannot get terminal's current mode\n"); + exit(-1); + } + + tty_rmode.c_iflag &= ~IXOFF; + if (tcsetattr(sfd, TCSANOW, &tty_rmode) < 0) { + fprintf(stderr, "Cannot disable terminal's flow control on input\n"); + exit(-1); + } + + tty_rmode.c_iflag &= ~IXON; + if (tcsetattr(sfd, TCSANOW, &tty_rmode) < 0) { + fprintf(stderr, "Cannot disable terminal's flow control on output\n"); + exit(-1); + } + } + #ifdef DEBUG - if (tcgetattr(sfd, &tty_rmode) , 0) { + if (tcgetattr(sfd, &tty_rmode) < 0) { fprintf(stderr, "Cannot get terminals current mode\n"); exit(-1); } |