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| -rw-r--r-- | hurdtranslatorexample.mdwn | 492 |
1 files changed, 241 insertions, 251 deletions
diff --git a/hurdtranslatorexample.mdwn b/hurdtranslatorexample.mdwn index 61d3e4cf..83ac7da1 100644 --- a/hurdtranslatorexample.mdwn +++ b/hurdtranslatorexample.mdwn @@ -10,302 +10,292 @@ is included in the section entitled The code examples were written by Anand Babu. -We have a data.h header file, a data.defs file, a data-user.c, data-server.c sources files and a Makefile. +We have a data.h header file, a data.defs file, a data-user.c, data-server.c +sources files and a Makefile. data.h: ------- -<pre> -#ifndef _data_user_ -#define _data_user_ - -/* Module data */ - -#include <mach/kern_return.h> -#include <mach/port.h> -#include <mach/message.h> - -#include <mach/std_types.h> -#include <mach/mach_types.h> -#include <device/device_types.h> -#include <device/net_status.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <sys/resource.h> -#include <sys/utsname.h> -#include <hurd/hurd_types.h> - -/* Routine data_set_value */ -#ifdef mig_external -mig_external -#else -extern -#endif -kern_return_t S_data_set_value -#if defined(LINTLIBRARY) - (data_port, value) - mach_port_t data_port; - int value; -{ return S_data_set_value(data_port, value); } -#else -( - mach_port_t data_port, - int value -); -#endif - -/* Routine data_get_value */ -#ifdef mig_external -mig_external -#else -extern -#endif -kern_return_t S_data_get_value -#if defined(LINTLIBRARY) - (data_port, value) - mach_port_t data_port; - int *value; -{ return S_data_get_value(data_port, value); } -#else -( - mach_port_t data_port, - int *value -); -#endif - -#endif /* not defined(_data_user_) */ -</pre> + #ifndef _data_user_ + #define _data_user_ + + /* Module data */ + + #include <mach/kern_return.h> + #include <mach/port.h> + #include <mach/message.h> + + #include <mach/std_types.h> + #include <mach/mach_types.h> + #include <device/device_types.h> + #include <device/net_status.h> + #include <sys/types.h> + #include <sys/stat.h> + #include <sys/statfs.h> + #include <sys/resource.h> + #include <sys/utsname.h> + #include <hurd/hurd_types.h> + + /* Routine data_set_value */ + #ifdef mig_external + mig_external + #else + extern + #endif + kern_return_t S_data_set_value + #if defined(LINTLIBRARY) + (data_port, value) + mach_port_t data_port; + int value; + { return S_data_set_value(data_port, value); } + #else + ( + mach_port_t data_port, + int value + ); + #endif + + /* Routine data_get_value */ + #ifdef mig_external + mig_external + #else + extern + #endif + kern_return_t S_data_get_value + #if defined(LINTLIBRARY) + (data_port, value) + mach_port_t data_port; + int *value; + { return S_data_get_value(data_port, value); } + #else + ( + mach_port_t data_port, + int *value + ); + #endif + + #endif /* not defined(_data_user_) */ data.defs: ---------- -<pre> -/* Definitions for data interface - -This file is part of the GNU Hurd. - -The GNU Hurd is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -The GNU Hurd is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with the GNU Hurd; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -subsystem data 45000; - -#include <hurd/hurd_types.defs> - -#ifdef STACK_IMPORTS -STACK_IMPORTS -#endif - -/* intr-rpc.defs defines the INTR_INTERFACE macro to make the generated RPC -stubs send-interruptible, and to prefix them with `hurd_intr_rpc_'. */ -INTR_INTERFACE - -/* set integer value to data */ -routine data_set_value ( - data_port: mach_port_t; - value: int); - -/* get integer value from data */ -routine data_get_value ( - data_port: mach_port_t; - out value: int); -</pre> + /* Definitions for data interface + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + The GNU Hurd is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the GNU Hurd; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + + subsystem data 45000; + + #include <hurd/hurd_types.defs> + + #ifdef STACK_IMPORTS + STACK_IMPORTS + #endif + + /* intr-rpc.defs defines the INTR_INTERFACE macro to make the generated RPC + stubs send-interruptible, and to prefix them with `hurd_intr_rpc_'. */ + INTR_INTERFACE + + /* set integer value to data */ + routine data_set_value ( + data_port: mach_port_t; + value: int); + + /* get integer value from data */ + routine data_get_value ( + data_port: mach_port_t; + out value: int); data-user.c: ------------ -<pre> -#include <stdio.h> -#include <hurd.h> -#include <hurd/hurd_types.h> -#include "data.h" - -#ifndef _GNU_SOURCE - #define _GNU_SOURCE -#endif - -int -main(int argc, char *argv[]) -{ - int value=0; - mach_port_t data_server_port; - - data_server_port = file_name_lookup ("/tmp/trans", 0, 0); - printf ("data_server_port [%u]\n", data_server_port); - S_data_set_value (data_server_port, 99); - S_data_get_value (data_server_port, &value); - printf ("data->get_value: [%d]\n", value); - - return 0; -} -</pre> + #include <stdio.h> + #include <hurd.h> + #include <hurd/hurd_types.h> + #include "data.h" + + #ifndef _GNU_SOURCE + #define _GNU_SOURCE + #endif + + int + main(int argc, char *argv[]) + { + int value=0; + mach_port_t data_server_port; + + data_server_port = file_name_lookup ("/tmp/trans", 0, 0); + printf ("data_server_port [%u]\n", data_server_port); + S_data_set_value (data_server_port, 99); + S_data_get_value (data_server_port, &value); + printf ("data->get_value: [%d]\n", value); + + return 0; + } data-server.c: -------------- -<pre> -#ifndef _GNU_SOURCE - #define _GNU_SOURCE -#endif - -#include <stdio.h> -#include <getopt.h> -#include <errno.h> -#include <sys/stat.h> -#include <error.h> - -#include <hurd/ports.h> -#include <hurd/hurd_types.h> -#include <hurd/trivfs.h> - -#include "data.h" - -extern boolean_t S_data_server -(mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP); - -int trivfs_fstype = FSTYPE_MISC; -int trivfs_fsid = 0; -int trivfs_support_read = 0; -int trivfs_support_write = 0; -int trivfs_support_exec = 0; -int trivfs_allow_open = 0x00; -int trivfs_protid_nportclasses = 0; -int trivfs_cntl_nportclasses = 0; - -int data_value; - -int demuxer (mach_msg_header_t *inp, mach_msg_header_t *outp) -{ - return (S_data_server(inp,outp)||trivfs_demuxer(inp,outp)); -} - -void trivfs_modify_stat (struct trivfs_protid *cred, io_statbuf_t *st) -{ -} -error_t trivfs_goaway (struct trivfs_control *fsys, int flags) -{ - exit (0); -} - -kern_return_t S_data_set_value (mach_port_t data_port, int value) -{ - data_value = value; - return 0; -} - -kern_return_t S_data_get_value (mach_port_t data_port, int *value) -{ - *value = data_value; - return 0; -} - -int -main(int argc, char *argv[]) -{ - int err; - mach_port_t bootstrap; - struct trivfs_control *fsys; - - if (argc > 1) + #ifndef _GNU_SOURCE + #define _GNU_SOURCE + #endif + + #include <stdio.h> + #include <getopt.h> + #include <errno.h> + #include <sys/stat.h> + #include <error.h> + + #include <hurd/ports.h> + #include <hurd/hurd_types.h> + #include <hurd/trivfs.h> + + #include "data.h" + + extern boolean_t S_data_server + (mach_msg_header_t *InHeadP, mach_msg_header_t *OutHeadP); + + int trivfs_fstype = FSTYPE_MISC; + int trivfs_fsid = 0; + int trivfs_support_read = 0; + int trivfs_support_write = 0; + int trivfs_support_exec = 0; + int trivfs_allow_open = 0x00; + int trivfs_protid_nportclasses = 0; + int trivfs_cntl_nportclasses = 0; + + int data_value; + + int demuxer (mach_msg_header_t *inp, mach_msg_header_t *outp) { - fprintf(stderr, "Usage: settrans [opts] node %s\n", program_invocation_name); - exit (1); + return (S_data_server(inp,outp)||trivfs_demuxer(inp,outp)); + } + + void trivfs_modify_stat (struct trivfs_protid *cred, io_statbuf_t *st) + { + } + error_t trivfs_goaway (struct trivfs_control *fsys, int flags) + { + exit (0); + } + + kern_return_t S_data_set_value (mach_port_t data_port, int value) + { + data_value = value; + return 0; + } + + kern_return_t S_data_get_value (mach_port_t data_port, int *value) + { + *value = data_value; + return 0; + } + + int + main(int argc, char *argv[]) + { + int err; + mach_port_t bootstrap; + struct trivfs_control *fsys; + + if (argc > 1) + { + fprintf(stderr, "Usage: settrans [opts] node %s\n", program_invocation_name); + exit (1); + } + + task_get_bootstrap_port (mach_task_self (), &bootstrap); + if (bootstrap == MACH_PORT_NULL) + error(2, 0, "Must be started as a translator"); + + /* Reply to our parent */ + err = trivfs_startup (bootstrap, 0, 0, 0, 0, 0,&fsys); + mach_port_deallocate (mach_task_self (), bootstrap); + if (err) { + return (0); + } + + ports_manage_port_operations_one_thread (fsys->pi.bucket, demuxer, 0); + + return 0; } - - task_get_bootstrap_port (mach_task_self (), &bootstrap); - if (bootstrap == MACH_PORT_NULL) - error(2, 0, "Must be started as a translator"); - - /* Reply to our parent */ - err = trivfs_startup (bootstrap, 0, 0, 0, 0, 0,&fsys); - mach_port_deallocate (mach_task_self (), bootstrap); - if (err) { - return (0); - } - - ports_manage_port_operations_one_thread (fsys->pi.bucket, demuxer, 0); - - return 0; -} -</pre> Makefile: --------- -<pre> -CC = gcc -MIG = mig -CFLAGS = -Wall -g -D_GNU_SOURCE -LDFLAGS = -lthreads -lports -ltrivfs -lfshelp -lshouldbeinlibc -INCLUDES = -I. -LCHDRS = -MIGCOMSFLAGS = -prefix S_ -OBJS = $(SRCS:.c=.o) -TAGS = etags.emacs21 - -all: data-server data-user -tags: - $(TAGS) $(SRCS) $(LCHDRS) - -stubs: data.defs - $(MIG) $(MIGCOMSFLAGS) -server dataServer.c -user dataUser.c $^ -data-server: data-server.c dataServer.c - $(CC) $^ $(CFLAGS) $(INCLUDES) $(LDFLAGS) -o $@ -data-user: data-user.c dataUser.c - $(CC) $^ $(CFLAGS) $(INCLUDES) -o $@ -clean: - rm -f *.o data-server data-user - -start: data-server data-user - settrans -ac /tmp/trans data-server - ps -x | grep data-server -end: - settrans -fg /tmp/trans -</pre> + CC = gcc + MIG = mig + CFLAGS = -Wall -g -D_GNU_SOURCE + LDFLAGS = -lthreads -lports -ltrivfs -lfshelp -lshouldbeinlibc + INCLUDES = -I. + LCHDRS = + MIGCOMSFLAGS = -prefix S_ + OBJS = $(SRCS:.c=.o) + TAGS = etags.emacs21 + + all: data-server data-user + tags: + $(TAGS) $(SRCS) $(LCHDRS) + + stubs: data.defs + $(MIG) $(MIGCOMSFLAGS) -server dataServer.c -user dataUser.c $^ + data-server: data-server.c dataServer.c + $(CC) $^ $(CFLAGS) $(INCLUDES) $(LDFLAGS) -o $@ + data-user: data-user.c dataUser.c + $(CC) $^ $(CFLAGS) $(INCLUDES) -o $@ + clean: + rm -f *.o data-server data-user + + start: data-server data-user + settrans -ac /tmp/trans data-server + ps -x | grep data-server + end: + settrans -fg /tmp/trans Building -------- Do -<pre> make stubs </pre> + make stubs -to create the dataUser.c and dataServer.c files generated by mig. Create the executables using: +to create the dataUser.c and dataServer.c files generated by mig. Create the +executables using: -<pre> make all </pre> + make all Testing ------- Start the data-server translator using: -<pre> settrans -ac /tmp/trans data-server </pre> + settrans -ac /tmp/trans data-server -You can check if it is running u sing +You can check if it is running using -<pre> ps -x | grep data-server </pre> + ps -x | grep data-server Run the data-user executable to get the resultant output. You can remove the translator using: -<pre> settrans -fg /tmp/trans </pre> + settrans -fg /tmp/trans To remove the built files use: -<pre> make clean </pre>. + make clean Happy Hacking! - --- ShakthiKannan - 01 Dec 2006
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