diff options
Diffstat (limited to 'src/eval')
| -rw-r--r-- | src/eval/operation.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/eval/operation.c b/src/eval/operation.c index 3b6275a..3df3c85 100644 --- a/src/eval/operation.c +++ b/src/eval/operation.c @@ -6,7 +6,7 @@ /* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */ /* +#+#+#+#+#+ +#+ */ /* Created: 2020/06/17 15:27:22 by charles #+# #+# */ -/* Updated: 2020/10/10 13:01:56 by cacharle ### ########.fr */ +/* Updated: 2020/10/10 18:17:15 by charles ### ########.fr */ /* */ /* ************************************************************************** */ @@ -21,7 +21,7 @@ ** stat code of the right hand side otherwise. */ -int eval_operation(int fds[2], t_env env, t_ast *ast) +int eval_operation(int fds[2], t_env env, t_ast *ast) { int status; int left_fds[2]; @@ -44,7 +44,20 @@ int eval_operation(int fds[2], t_env env, t_ast *ast) #define PIPES_PREV_OUTPUT 2 -static int st_run_piped( +/* +** \brief Evaluate a piped expression (i.e command or parenthesis) +** \param env Environment +** \param ast AST of the expression to evaluate +** \param pipes File descriptor to setup in the child +** pipes[0] - read end +** pipes[1] - write end +** pipes[2] - output of the previous command +** \param is_last Setup file dscriptors differently if +** it's the last expression in the pipeline +** \return pid of the child process +*/ + +static pid_t st_run_piped( t_env env, t_ast *ast, int pipes[3], bool is_last) { pid_t pid; @@ -78,7 +91,7 @@ static int st_run_piped( ** \return Status of the last command in the pipeline */ -int eval_pipeline(t_env env, t_ast *ast) +int eval_pipeline(t_env env, t_ast *ast) { t_ftlst *curr; int pipes[3]; |