Implement process_memcpy_ptop() function for copying data directly between processes

diff --git a/kernel/core/process.c b/kernel/core/process.c
index 2e994fad19e20806bb2d13d1949ef7d873fc57b6..17d05822463b5d40d01d8aa4fd9752c19b62d9cd 100644 (file)
--- a/kernel/core/process.c
+++ b/kernel/core/process.c
@@ -185,3 +185,12 @@ int process_memcpy_ktop(process_t *proc, void *dst, void *src, u32_t bytes)
 
        return(ret_val);
 }
+
+int process_memcpy_ptop(process_t *dproc, void *dst, process_t *sproc, void *src, u32_t bytes)
+{
+       int ret_val;
+
+       ret_val = pg_dir_memcpy(dproc->p_pgdir, dst, sproc->p_pgdir, src, bytes);
+
+       return(ret_val);
+}

diff --git a/kernel/include/process.h b/kernel/include/process.h
index f5ad6ba51b0efaa25391ad9283182b05e6a60fdc..f8c80bfc06821f233818c34c915e37df0aff54ce 100644 (file)
--- a/kernel/include/process.h
+++ b/kernel/include/process.h
@@ -34,5 +34,6 @@ process_t* process_get_current(void);
 
 int process_memcpy_ptok(process_t*, void*, void*, u32_t);
 int process_memcpy_ktop(process_t*, void*, void*, u32_t);
+int process_memcpy_ptop(process_t*, void*, process_t*, void*, u32_t);
 
 #endif /* __PROCESS_H */