win32: ash: struct forkshell

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 7cd96b2ea..a9a900bfd 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -81,6 +81,38 @@
 # error "Do not even bother, ash will not run on NOMMU machine"
 #endif
 
+#if ENABLE_PLATFORM_MINGW32
+struct forkshell;
+union node;
+struct strlist;
+struct job;
+
+typedef void (*forkpoint_fn)(struct forkshell *fs);
+struct forkshell {
+        /* filled by forkshell_copy() */
+        struct globals_var *gvp;
+        struct globals_misc *gmp;
+        struct tblentry **cmdtable;
+        struct localvar *localvars;
+        /* struct alias **atab; */
+        /* struct parsefile *g_parsefile; */
+        int fpid;
+        HANDLE hMapFile;
+        void *old_base;
+        int nodeptr_offset;
+        int size;
+
+        forkpoint_fn fp;
+        /* optional data, used by forkpoint_fn */
+        int flags;
+        int fd[10];
+        union node *n;
+        char **argv;
+        char *string;
+        struct strlist *strlist;
+        pid_t pid;
+};
+#endif
 
 /* ============ Hash table sizes. Configurable. */
 
@@ -13600,6 +13632,49 @@ globals_misc_copy(struct globals_misc *p)
         SAVE_PTR4(new->minusc, new->curdir, new->physdir, new->arg0);
         return new;
 }
+
+static void
+forkshell_size(struct forkshell *fs)
+{
+        funcblocksize += sizeof(struct forkshell);
+        globals_var_size(fs->gvp);
+        globals_misc_size(fs->gmp);
+        cmdtable_size(fs->cmdtable);
+        localvar_size(fs->localvars);
+        /* optlist_transfer(sending, fd); */
+        /* misc_transfer(sending, fd); */
+
+        calcsize(fs->n);
+        argv_size(fs->argv);
+        funcstringsize += (fs->string ? strlen(fs->string) : 0) + 1;
+        strlist_size(fs->strlist);
+
+        nodeptrsize += 8; /* gvp, gmp, cmdtable, localvars, n, argv, string, strlist */
+}
+
+static struct forkshell *
+forkshell_copy(struct forkshell *fs)
+{
+        struct forkshell *new;
+
+        new = funcblock;
+        funcblock = (char *) funcblock + sizeof(struct forkshell);
+
+        memcpy(new, fs, sizeof(struct forkshell)); /* non-pointer stuff */
+        new->gvp = globals_var_copy(fs->gvp);
+        new->gmp = globals_misc_copy(fs->gmp);
+        new->cmdtable = cmdtable_copy(fs->cmdtable);
+        new->localvars = localvar_copy(fs->localvars);
+        SAVE_PTR4(new->gvp, new->gmp, new->cmdtable, new->localvars);
+
+        /* new->fs will be reconstructed from new->fpid */
+        new->n = copynode(fs->n);
+        new->argv = argv_copy(fs->argv);
+        new->string = nodeckstrdup(fs->string);
+        new->strlist = strlist_copy(fs->strlist);
+        SAVE_PTR4(new->n, new->argv, new->string, new->strlist);
+        return new;
+}
 /*-
  * Copyright (c) 1989, 1991, 1993, 1994
  *      The Regents of the University of California.  All rights reserved.