coprocv, coprocvp, coprocvpe, coprocs, coprocsp - execute a command in coprocessing mode

       Renzo Davoli <renzo@cs.unibo.it>

VirtualSquare                                      2014-05-27                                       coprocess(3)

       Bug reports should be addressed to <info@virtualsquare.org>

       These  functions  run  commands  in coprocessing mode.  They differs in the way to specify the executable
       file to run and its parameters.  All of them define two pipes (by  pipe(2)),  create  a  new  process  by
       fork(2),  redirect  the standard input and output of the new process in the two pipes, and exec a program
       by one of the exec(3) functions.

       The calling program controls both the standard input and the  standard  output  of  the  called  process:
       writing  to  pipefd[1]  provides  input to the coprocess while the coprocess output can be retrieved from
       pipefd[0].

       coprocv, coprocve, coprocvp, coprocvpe, coprocs, coprocse, coprocsp, and coprocsp differ as  they  define
       the  executable  file  to run and its arguments as execv, execve, execvp, execvpe, execs, execse, execsp,
       and execsp, respectively.

       coprocv, coprocvp, coprocvpe, coprocs, coprocsp - execute a command in coprocessing mode

#include<execs.h>pid_tcoprocv(constchar*path,char*constargv[],intpipefd[2]);pid_tcoprocve(constchar*path,char*constargv[],char*constenvp[],intpipefd[2]);pid_tcoprocvp(constchar*file,char*constargv[],intpipefd[2]);pid_tcoprocvpe(constchar*file,char*constargv[],char*constenvp[],intpipefd[2]);pid_tcoprocs(constchar*path,constchar*command,intpipefd[2]);pid_tcoprocse(constchar*path,constchar*command,char*constenvp[],intpipefd[2]);pid_tcoprocsp(constchar*command,intpipefd[2]);pid_tcoprocspe(constchar*command,char*constenvp[],intpipefd[2]);

       These functions are provided by libexecs. Link with -lexecs.