Shell-VII releaseshell-VII

1 files changed, 18 insertions, 3 deletions

diff --git a/shell.h b/shell.h
index b3dd93d..c92d68d 100644
--- a/shell.h
+++ b/shell.h
@@ -4,6 +4,8 @@
 #include "dynamic_array.h"
 #include "queue.h"
 
+#include <signal.h>
+
 enum {
     /* CTRL-D  */
     end_of_file     = 4,
@@ -19,7 +21,10 @@ enum {
 enum {
     append          = '>' + 1,
     and             = '&' + 1,
-    or              = '|' + 1
+    or              = '|' + 1,
+    next_command    = ';',
+    start_subshell  = '(',
+    end_subshell    = ')'
 };
 
 /* error codes */
@@ -30,7 +35,10 @@ enum {
     err_bg_process                  = 4,
     err_empty_command               = 5,
     err_extra_chars_after_filename  = 6,
-    err_odd_double_quotes           = 7
+    err_odd_double_quotes           = 7,
+    err_set_failure                 = 8,
+    err_missing_closing_bracket     = 9,
+    err_repeated_background_ch      = 10
 };
 
 /* storing file names to redirect standard input/output streams */
@@ -49,12 +57,19 @@ struct param_type {
     int tokens;
     int wrong_command;
     struct io_type streams;
-    int last_execution_status;
     int pipeline;
     int new_readline;
+    int general_pipe_pgid;
+    int general_subshell_pgid;
     int general_pgid;
+    int subshell;
+    int fd_read_for_channel;
+    int fd_read_for_subshell;
+    int background_process;
 };
 
+extern volatile sig_atomic_t last_execution_status;
+
 int filename_waiting(struct param_type *params);
 void add_filename(struct dynamic_array *tmp_word, struct param_type *params);
 void add_word(struct w_queue *word_chain, struct dynamic_array *tmp_word,