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-rw-r--r--erts/etc/ose/run_erl.c664
1 files changed, 0 insertions, 664 deletions
diff --git a/erts/etc/ose/run_erl.c b/erts/etc/ose/run_erl.c
deleted file mode 100644
index 6775525297..0000000000
--- a/erts/etc/ose/run_erl.c
+++ /dev/null
@@ -1,664 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2013. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * %CopyrightEnd%
- */
-/*
- * Module: run_erl.c
- *
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-/* System includes */
-#include <aio.h>
-#include <errno.h>
-#include <dirent.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-/* OSE includes */
-#include "ose.h"
-#include "ose_spi/ose_spi.h"
-#include "efs.h"
-#include "pm.h"
-#include "ose_spi/fm.sig"
-
-/* erts includes */
-#include "run_erl.h"
-#include "run_erl_common.h"
-#include "safe_string.h" /* sn_printf, strn_cpy, strn_cat, etc */
-
-typedef struct RunErlSetup_ {
- SIGSELECT signo;
- int run_daemon;
- char *logdir;
- char *command;
- char *pipename;
- char *blockname;
-} RunErlSetup;
-
-typedef struct ProgramState_ {
- /* child process */
- int ifd, ofd;
- OSDOMAIN domain;
- PROCESS progpid, mainbid;
- struct PmProgramInfo *info;
- /* to_erl */
- char w_pipe[FILENAME_BUFSIZ],
- r_pipe[FILENAME_BUFSIZ];
-} ProgramState;
-
-union SIGNAL {
- SIGSELECT signo;
- RunErlSetup setup;
- struct FmReadPtr fm_read_ptr;
- struct FmWritePtr fm_write_ptr;
-};
-
-static OSBOOLEAN hunt_in_block(char *block_name,
- char *process_name,
- PROCESS *pid);
-static int create_child_process(char *command_string, char *blockname,
- ProgramState *state);
-
-
-static OSBOOLEAN hunt_in_block(char *block_name,
- char *process_name,
- PROCESS *pid) {
- struct OS_pid_list *list;
- PROCESS block_id = OSE_ILLEGAL_PROCESS;
- int i;
- char *name;
-
- *pid = OSE_ILLEGAL_PROCESS;
-
- list = get_bid_list(0);
-
- if (!list)
- return 0;
-
- for (i = 0; i < list->count; i++) {
-
- if (list->list[i] == get_bid(current_process()))
- continue;
-
- name = (char*)get_pid_info(list->list[i], OSE_PI_NAME);
- if (name) {
- if (strcmp(name,block_name) == 0) {
- block_id = list->list[i];
- free_buf((union SIGNAL**)&name);
- break;
- }
- free_buf((union SIGNAL**)&name);
- }
- }
-
- free_buf((union SIGNAL**)&list);
-
- if (block_id == OSE_ILLEGAL_PROCESS)
- return 0;
-
- list = get_pid_list(block_id);
-
- if (!list)
- return 0;
-
- for (i = 0; i < list->count; i++) {
- name = (char*)get_pid_info(list->list[i], OSE_PI_NAME);
- if (name) {
- if (strcmp(name,process_name) == 0) {
- *pid = list->list[i];
- free_buf((union SIGNAL**)&name);
- break;
- }
- free_buf((union SIGNAL**)&name);
- }
- }
-
- free_buf((union SIGNAL**)&list);
-
- if (*pid == OSE_ILLEGAL_PROCESS)
- return 0;
-
- return 1;
-
-}
-
-
-static int create_child_process(char *command_string, char *blockname,
- ProgramState *state) {
- char *command = command_string;
- char *argv;
- int i = 0;
- int ret_status;
- PmStatus pm_status;
- int tmp_io[2];
- int fd_arr[3];
- int ifd[2], ofd[2];
- char *handle;
- struct PmLoadModuleInfoReply *mod_info;
-
- /* Parse out cmd and argv from the command string */
- while (1) {
- if (command[i] == ' ' || command[i] == '\0') {
- if (command[i] == '\0')
- argv = NULL;
- else {
- command[i] = '\0';
- argv = command_string + i + 1;
- }
- break;
- }
- i++;
- }
-
- if (blockname)
- handle = blockname;
- else
- handle = simple_basename(command);
-
- if (ose_pm_load_module_info(handle,&mod_info) == PM_SUCCESS) {
- /* Already installed */
- free_buf((union SIGNAL**)&mod_info);
- } else if ((pm_status = ose_pm_install_load_module(0,"ELF",command,handle,0,0,NULL))
- != PM_SUCCESS) {
- ERROR1(LOG_ERR,"ose_pm_install_load_module failed - pmstatus: 0x%08x\n",
- pm_status);
- return 0;
- }
-
- state->domain = PM_NEW_DOMAIN;
-
- pm_status = ose_pm_create_program(&state->domain, handle, 0, 0 , NULL,
- &state->progpid, &state->mainbid);
-
- if (pm_status != PM_SUCCESS) {
- if (pm_status == PM_EINSTALL_HANDLE_IN_USE)
- ERROR1(LOG_ERR,"ose_pm_create_program failed - "
- "install handle \"%s\" is in use. You can specify another "
- "install handle by using the -block option to run_erl.\n",handle);
- else
- ERROR1(LOG_ERR,"ose_pm_create_program failed - pmstatus: 0x%08x\n",
- pm_status);
- return 0;
- }
-
- pm_status = ose_pm_program_info(state->progpid, &state->info);
- /* FIXME don't forget to free this ((union SIGNAL **)&info) */
- if (pm_status != PM_SUCCESS) {
- ERROR1(LOG_ERR,"ose_pm_program_info failed - pmstatus: 0x%08x\n",
- pm_status);
- return 0;
- }
-
- /* We only clone stdin+stdout, what about stderr? */
-
- /* create pipes */
- if (pipe(ifd) < 0) {
- if (errno == ENOENT)
- ERRNO_ERR0(LOG_ERR,"The /pipe file system is not available\n");
- else
- ERRNO_ERR0(LOG_ERR,"pipe ifd failed\n");
- return 0;
- }
-
- if (pipe(ofd) < 0) {
- ERRNO_ERR0(LOG_ERR,"pipe ofd failed\n");
- return 0;
- }
-
- /* FIXME Lock? */
-
- /* backup our stdin stdout */
- if ((tmp_io[0] = dup(0)) < 0) {
- ERRNO_ERR0(LOG_ERR,"dup 0 failed\n");
- return 0;
- }
-
- if ((tmp_io[1] = dup(1)) < 0) {
- ERRNO_ERR0(LOG_ERR,"dup 1 failed\n");
- return 0;
- }
-
- /* set new pipe to fd 0,1 */
- if (dup2(ifd[1], 1) < 0) {
- ERRNO_ERR0(LOG_ERR,"dup2 1 failed\n");
- return 0;
- }
-
- if (dup2(ofd[0], 0) < 0) {
- ERRNO_ERR0(LOG_ERR,"dup2 0 failed\n");
- return 0;
- }
-
- /* clone array to newly created */
- fd_arr[0] = 2; /* Number of fd's */
- fd_arr[1] = 0;
- fd_arr[2] = 1;
-
- if ((ret_status = efs_clone_array(state->info->main_process, fd_arr))
- != EFS_SUCCESS) {
- ERROR1(LOG_ERR,"efs_close_array filed, errcode: %d\n", ret_status);
- return 0;
- }
-
- if (dup2(tmp_io[1], 1) < 0) {
- ERRNO_ERR0(LOG_ERR,"restoring dup2 1 failed\n");
- return 0;
- }
-
- if (dup2(tmp_io[0], 0) < 0) {
- ERRNO_ERR0(LOG_ERR,"restoring dup2 1 failed\n");
- return 0;
- }
-
- /* close loose-ends */
- sf_close(tmp_io[0]);
- sf_close(tmp_io[1]);
- sf_close(ifd[1]);
- sf_close(ofd[0]);
- state->ifd = ifd[0];
- state->ofd = ofd[1];
-
- if (argv && set_env(state->progpid, "ARGV", argv)) {
- ERRNO_ERR0(LOG_ERR,"something went wrong with set_env\n");
- }
-
- /*
- * Start the program.
- */
- pm_status = ose_pm_start_program(state->progpid);
- if (pm_status != PM_SUCCESS) {
- ERROR1(LOG_ERR,"ose_pm_install_load_module failed - pmstatus: 0x%08x\n",
- pm_status);
- return 0;
- }
-
- return 1;
-}
-
-#define SET_AIO(REQ,FD,SIZE,BUFF) \
- /* Make sure to clean data structure of previous request */ \
- memset(&(REQ),0,sizeof(REQ)); \
- (REQ).aio_fildes = FD; \
- (REQ).aio_offset = FM_POSITION_CURRENT; \
- (REQ).aio_nbytes = SIZE; \
- (REQ).aio_buf = BUFF; \
- (REQ).aio_sigevent.sigev_notify = SIGEV_NONE
-
-#define READ_AIO(REQ,FD,SIZE,BUFF) do { \
- SET_AIO(REQ,FD,SIZE,BUFF); \
- if (aio_read(&(REQ)) != 0) \
- ERRNO_ERR1(LOG_ERR,"aio_read of child_read_req(%d) failed\n",FD); \
- } while (0)
-
-#define WRITE_AIO(FD,SIZE,BUFF) do { \
- struct aiocb *write_req = malloc(sizeof(struct aiocb)); \
- char *write_buff = malloc(sizeof(char)*SIZE); \
- memcpy(write_buff,BUFF,SIZE); \
- SET_AIO(*write_req,FD,SIZE,write_buff); \
- if (aio_write(write_req) != 0) \
- ERRNO_ERR1(LOG_ERR,"aio_write of write_req(%d) failed\n",FD); \
- } while(0)
-
-int pass_on(ProgramState *state);
-int pass_on(ProgramState *s) {
- SIGSELECT sigsel[] = {0,FM_READ_PTR_REPLY};
- union SIGNAL *sig;
- char child_read_buff[BUFSIZ], pipe_read_buff[BUFSIZ];
- struct aiocb child_read_req, pipe_read_req;
- int rfd, wfd = 0;
- FmHandle rfh, child_rfh;
- int outstanding_writes = 0, got_some = 0, child_done = 0;
-
- if ((rfd = sf_open(s->r_pipe, O_RDONLY, 0)) < 0) {
- ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.\n", s->r_pipe);
- rfd = 0;
- return 1;
- }
-
- attach(NULL,s->progpid);
-
- /* Open the log file */
- erts_run_erl_log_open();
-
- efs_examine_fd(rfd,FLIB_FD_HANDLE,&rfh);
- efs_examine_fd(s->ifd,FLIB_FD_HANDLE,&child_rfh);
-
- READ_AIO(child_read_req,s->ifd,BUFSIZ,child_read_buff);
- READ_AIO(pipe_read_req,rfd,BUFSIZ,pipe_read_buff);
-
- while (1) {
- time_t now,last_activity;
-
- time(&last_activity);
- sig = receive_w_tmo(erts_run_erl_log_alive_minutes()*60000,sigsel);
-
- time(&now);
-
- if (sig) {
- erts_run_erl_log_activity(0,now,last_activity);
- } else {
- /* timeout */
- erts_run_erl_log_activity(1,now,last_activity);
- continue;
- }
-
- switch (sig->signo) {
- case OS_ATTACH_SIG: {
- if (rfd) { sf_close(rfd); rfd = 0; }
- free_buf(&sig);
- child_done = 1;
- /* Make sure to to let all outstanding write request finish */
- if (outstanding_writes)
- break;
- if (wfd) sf_close(wfd);
- return 0;
- }
- case FM_WRITE_PTR_REPLY: {
- if (sig->fm_write_ptr.status == EFS_SUCCESS) {
- if (sig->fm_write_ptr.actual < sig->fm_write_ptr.requested) {
- WRITE_AIO(wfd, sig->fm_write_ptr.requested-sig->fm_write_ptr.actual,
- sig->fm_write_ptr.buffer+sig->fm_write_ptr.actual);
- }
- } else {
- /* Assume to_erl has terminated. */
- sf_close(wfd);
- wfd = 0;
- }
- free((char*)sig->fm_write_ptr.buffer);
- aio_dispatch(sig);
- if ((--outstanding_writes == 0) && child_done) {
- if (wfd) sf_close(wfd);
- return 0;
- }
- break;
- }
- case FM_READ_PTR_REPLY: {
- /* Child fd */
- if (sig->fm_read_ptr.handle == child_rfh) {
-
- /* Child terminated */
- if (sig->fm_read_ptr.status != EFS_SUCCESS ||
- sig->fm_read_ptr.actual == 0) {
-
- if (rfd) { sf_close(rfd); rfd = 0; }
-
- if (sig->fm_read_ptr.status != EFS_SUCCESS) {
- ERROR0(LOG_ERR,"Erlang closed the connection.");
- aio_dispatch(sig);
- return 1;
- }
-
- /* child closed connection gracefully */
- aio_dispatch(sig);
- if (outstanding_writes) {
- child_done = 1;
- break;
- }
-
- if (wfd) sf_close(wfd);
-
- return 0;
- } else {
- erts_run_erl_log_write(sig->fm_read_ptr.buffer,
- sig->fm_read_ptr.actual);
- if (wfd) {
- WRITE_AIO(wfd, sig->fm_read_ptr.actual, sig->fm_read_ptr.buffer);
- outstanding_writes++;
- }
- aio_dispatch(sig);
- READ_AIO(child_read_req, s->ifd,BUFSIZ, child_read_buff);
- }
- /* pipe fd */
- } else if (sig->fm_read_ptr.handle == rfh) {
- if (sig->fm_read_ptr.status != EFS_SUCCESS) {
- if(rfd) sf_close(rfd);
- if(wfd) sf_close(wfd);
- aio_dispatch(sig);
- ERRNO_ERR0(LOG_ERR,"Error in reading from FIFO.");
- return 1;
- }
- if (sig->fm_read_ptr.actual == 0) {
- /* to_erl closed its end of the pipe */
- aio_dispatch(sig);
- sf_close(rfd);
- rfd = sf_open(s->r_pipe,O_RDONLY|DONT_BLOCK_PLEASE, 0);
- if (rfd < 0) {
- ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.",
- s->r_pipe);
- rfd = 0;
- } else {
- READ_AIO(pipe_read_req,rfd,BUFSIZ,pipe_read_buff);
- }
- got_some = 0; /* reset for next session */
- } else {
- int len = sig->fm_read_ptr.actual;
- char *buffer = sig->fm_read_ptr.buffer;
- if (!wfd) {
- /* Try to open the write pipe to to_erl. Now that we got some data
- * from to_erl, to_erl should already be reading this pipe - open
- * should succeed. But in case of error, we just ignore it.
- */
- if ((wfd = sf_open(s->w_pipe, O_WRONLY|DONT_BLOCK_PLEASE, 0)) < 0) {
- erts_run_erl_log_status("Client expected on FIFO %s, "
- "but can't open (len=%d)\n",
- s->w_pipe, sig->fm_read_ptr.actual);
- sf_close(rfd);
- rfd = sf_open(s->r_pipe, O_RDONLY|DONT_BLOCK_PLEASE, 0);
- if (rfd < 0) {
- ERRNO_ERR1(LOG_ERR,"Could not open FIFO '%s' for reading.",
- s->r_pipe);
- return 1;
- }
- wfd = 0;
- } else {
-#ifdef DEBUG
- erts_run_erl_log_status("run_erl: %s opened for writing\n",
- s->w_pipe);
-#endif
- }
- }
-
- if (!got_some && wfd && buffer[0] == '\014') {
- char wbuf[30];
- int wlen = sn_printf(wbuf,sizeof(wbuf),"[run_erl v%u-%u]\n",
- RUN_ERL_HI_VER, RUN_ERL_LO_VER);
- /* For some reason this, the first write aio seems to
- not get an FM_WRITE_PTR_REPLY, so we do not do:
- outstanding_writes++;
- */
- WRITE_AIO(wfd, wlen, wbuf);
- }
- got_some = 1;
-
- /* Write the message */
-#ifdef DEBUG
- erts_run_erl_log_status("Pty master write; ");
-#endif
- len = erts_run_erl_extract_ctrl_seq(buffer,len, s->ofd);
-
- if (len > 0) {
- int wlen = erts_run_erl_write_all(s->ofd, buffer, len);
- if (wlen != len) {
- aio_dispatch(sig);
- ERRNO_ERR0(LOG_ERR,"Error in writing to terminal.");
- if(rfd) sf_close(rfd);
- if(wfd) sf_close(wfd);
- return 1;
- }
- }
-#ifdef DEBUG
- erts_run_erl_log_status("OK\n");
-#endif
- aio_dispatch(sig);
- READ_AIO(pipe_read_req,rfd,BUFSIZ,pipe_read_buff);
- }
- }
- break;
- }
- default: {
- free_buf(&sig);
- break;
- }
- }
- }
-}
-
-OS_PROCESS(run_erl_process) {
- char *logdir, *command, *blockname;
- SIGSELECT sigsel[] = {1,ERTS_SIGNAL_RUN_ERL_SETUP};
- union SIGNAL *sig = receive(sigsel);
- ProgramState state;
- char pipename[FILENAME_BUFSIZ];
-
- state.info = NULL;
-
- logdir = strdup(sig->setup.logdir);
- command = strdup(sig->setup.command);
- strn_cpy(pipename,sizeof(pipename),sig->setup.pipename);
-
- if (sig->setup.blockname)
- blockname = strdup(sig->setup.blockname);
- else
- blockname = NULL;
-
- erts_run_erl_log_init(sig->setup.run_daemon, logdir);
-
- free_buf(&sig);
-
- if (erts_run_erl_open_fifo(pipename,state.w_pipe,state.r_pipe))
- kill_proc(current_process());
-
- if (create_child_process(command,blockname,&state))
- pass_on(&state);
-
- free(logdir);
- free(command);
- if (blockname)
- free(blockname);
-
- if (state.info)
- free_buf(((union SIGNAL**)&state.info));
-
- sf_close(state.ifd);
- sf_close(state.ofd);
-
- unlink(state.w_pipe);
- unlink(state.r_pipe);
-
- kill_proc(current_process());
-}
-
-int run_erl(int argc,char **argv) {
- char *pipename, *logdir, *command, *blockname = NULL;
- int pipename_len, logdir_len, command_len, blockname_len = 0;
- int i = 1, run_daemon = 0;
- PROCESS pid;
- SIGSELECT sigsel[] = {0};
- union SIGNAL *sig;
-
- if(argc < 4) {
- fprintf(stderr,RUN_ERL_USAGE,"run_erl");
- return 1;
- }
-
- while (1) {
- if (argv[i][0] != '-')
- break;
- if (!strcmp(argv[i],"-daemon")) {
- run_daemon = 1;
- i++;
- continue;
- }
- if (!strcmp(argv[i],"-block")) {
- blockname = argv[i+1];
- blockname_len = strlen(argv[i+1]) + 1;
- i+=2;
- continue;
- }
- fprintf(stderr,RUN_ERL_USAGE,"run_erl");
- return 1;
- }
-
- pipename = argv[i++];
- logdir = argv[i++];
- command = argv[i++];
-
- /* + 1 to include NULL at end */
- logdir_len = strlen(logdir) + 1;
- command_len = strlen(command) + 1;
- pipename_len = strlen(pipename) + 1;
-
- if (run_daemon) {
- /* We request that the run_erl_process should be started from the
- main process so that it does not die when the shell command
- returns */
- PROCESS main_pid;
- hunt_in_block("run_erl","main",&main_pid);
- sig = alloc(sizeof(*sig),ERTS_SIGNAL_RUN_ERL_DAEMON);
- send(&sig,main_pid);
- sig = receive(sigsel);
- pid = sender(&sig);
- free_buf(&sig);
- } else {
- pid = create_process(OS_BG_PROC,"run_erl_process",
- run_erl_process, 0x800,
- 0, 0, 0, NULL, 0, 0);
- }
-
- sig = alloc(sizeof(RunErlSetup)+
- logdir_len+command_len+pipename_len+blockname_len,
- ERTS_SIGNAL_RUN_ERL_SETUP);
- sig->setup.run_daemon = run_daemon;
- sig->setup.logdir = ((char*)sig)+sizeof(RunErlSetup);
- sig->setup.command = ((char*)sig)+sizeof(RunErlSetup)+logdir_len;
- sig->setup.pipename = ((char*)sig)+sizeof(RunErlSetup)+logdir_len+command_len;
- if (blockname)
- sig->setup.blockname = ((char*)sig)+sizeof(RunErlSetup)+
- logdir_len+command_len+pipename_len;
- else
- sig->setup.blockname = NULL;
-
- strcpy(sig->setup.logdir,logdir);
- strcpy(sig->setup.command,command);
- strcpy(sig->setup.pipename,pipename);
- if (blockname) strcpy(sig->setup.blockname,blockname);
-
- send(&sig,pid);
-
- if (run_daemon) {
- /* We are a daemon, error msgs will be sent to ramlog */
- start(pid);
- return 1;
- }
-
- /* We are not daemon, error msgs will be sent to stderr and we block here */
- efs_clone(pid);
- start(pid);
-
- attach(NULL,pid);
- sig = receive(sigsel);
-
- return 1;
-}
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