From 903abcceb656701cd57a94404f1e13626618b1c9 Mon Sep 17 00:00:00 2001
From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date: Wed, 15 Sep 2010 09:44:01 +1000
Subject: win32: reimplement procps_scan()

On Linux, procps_scan() relies on /proc, which is obviously
unavailable on Windows.

This implementation currently supports procps_status_t.{pid,comm} only.
---
 win32/process.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'win32')

diff --git a/win32/process.c b/win32/process.c
index 13bf81797..1b9b61878 100644
--- a/win32/process.c
+++ b/win32/process.c
@@ -1,4 +1,5 @@
 #include "libbb.h"
+#include <tlhelp32.h>
 
 int waitpid(pid_t pid, int *status, unsigned options)
 {
@@ -284,3 +285,35 @@ mingw_execv(const char *cmd, const char *const *argv)
 {
 	return mingw_execve(cmd, argv, (const char *const *)environ);
 }
+
+/* POSIX version in libbb/procps.c */
+procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags)
+{
+	PROCESSENTRY32 pe;
+
+	pe.dwSize = sizeof(pe);
+	if (!sp) {
+		sp = xzalloc(sizeof(struct procps_status_t));
+		sp->snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+		if (sp->snapshot == INVALID_HANDLE_VALUE) {
+			free(sp);
+			return NULL;
+		}
+		if (!Process32First(sp->snapshot, &pe)) {
+			CloseHandle(sp->snapshot);
+			free(sp);
+			return NULL;
+		}
+	}
+	else {
+		if (!Process32Next(sp->snapshot, &pe)) {
+			CloseHandle(sp->snapshot);
+			free(sp);
+			return NULL;
+		}
+	}
+
+	sp->pid = pe.th32ProcessID;
+	strncpy(sp->comm, pe.szExeFile, COMM_LEN);
+	return sp;
+}
-- 
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