diff --git a/include/sigar_private.h b/include/sigar_private.h
index 8c21abbb..09c9b6d5 100644
--- a/include/sigar_private.h
+++ b/include/sigar_private.h
@@ -164,7 +164,8 @@ int sigar_sys_info_get_uname(sigar_sys_info_t *sysinfo);
 
 int sigar_os_sys_info_get(sigar_t *sigar, sigar_sys_info_t *sysinfo);
 
-int sigar_proc_list_create(sigar_proc_list_t *proclist);
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist);
 
 int sigar_proc_list_grow(sigar_proc_list_t *proclist);
 
diff --git a/src/os/aix/aix_sigar.c b/src/os/aix/aix_sigar.c
index a241c451..d54d8106 100644
--- a/src/os/aix/aix_sigar.c
+++ b/src/os/aix/aix_sigar.c
@@ -962,14 +962,12 @@ int sigar_loadavg_get(sigar_t *sigar,
     return SIGAR_OK;
 }
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     pid_t pid = 0;
     struct procsinfo info;
 
-    sigar_proc_list_create(proclist);
-
     for (;;) {
         int num = getprocs(&info, sizeof(info),
                            NULL, 0, &pid, 1);
diff --git a/src/os/darwin/darwin_sigar.c b/src/os/darwin/darwin_sigar.c
index 32401710..cf41fb03 100644
--- a/src/os/darwin/darwin_sigar.c
+++ b/src/os/darwin/darwin_sigar.c
@@ -613,8 +613,8 @@ int sigar_loadavg_get(sigar_t *sigar,
 #define KERN_PROC_PROC KERN_PROC_ALL
 #endif
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
 #if defined(DARWIN) || defined(SIGAR_FREEBSD5)
     int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PROC, 0 };
@@ -634,7 +634,6 @@ int sigar_proc_list_get(sigar_t *sigar,
     }
 
     num = len/sizeof(*proc);
-    sigar_proc_list_create(proclist);
 
     for (i=0; i<num; i++) {
         if (proc[i].KI_FLAG & P_SYSTEM) {
@@ -656,8 +655,6 @@ int sigar_proc_list_get(sigar_t *sigar,
     }
 
     proc = kvm_getprocs(sigar->kmem, KERN_PROC_PROC, 0, &num);
-    
-    sigar_proc_list_create(proclist);
 
     for (i=0; i<num; i++) {
         if (proc[i].KI_FLAG & P_SYSTEM) {
diff --git a/src/os/hpux/hpux_sigar.c b/src/os/hpux/hpux_sigar.c
index efdf9c99..4295d74b 100644
--- a/src/os/hpux/hpux_sigar.c
+++ b/src/os/hpux/hpux_sigar.c
@@ -206,14 +206,12 @@ int sigar_loadavg_get(sigar_t *sigar,
 
 #define PROC_ELTS 16
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     int num, idx=0;
     struct pst_status proctab[PROC_ELTS];
 
-    sigar_proc_list_create(proclist);
-
     while ((num = pstat_getproc(proctab, sizeof(proctab[0]),
                                 PROC_ELTS, idx)) > 0)
     {
diff --git a/src/os/linux/linux_sigar.c b/src/os/linux/linux_sigar.c
index 148cbe9f..97ba3db2 100644
--- a/src/os/linux/linux_sigar.c
+++ b/src/os/linux/linux_sigar.c
@@ -618,8 +618,8 @@ static SIGAR_INLINE int proc_isthread(sigar_t *sigar, char *pidstr, int len)
     return 1;
 }
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     DIR *dirp = opendir(PROCP_FS_ROOT);
     struct dirent *ent, dbuf;
@@ -632,8 +632,6 @@ int sigar_proc_list_get(sigar_t *sigar,
         sigar->proc_signal_offset = get_proc_signal_offset();
     }
 
-    sigar_proc_list_create(proclist);
-
     while (readdir_r(dirp, &dbuf, &ent) == 0) {
         if (!ent) {
             break;
diff --git a/src/os/osf1/osf1_sigar.c b/src/os/osf1/osf1_sigar.c
index cdc8b94d..caa09dc2 100644
--- a/src/os/osf1/osf1_sigar.c
+++ b/src/os/osf1/osf1_sigar.c
@@ -165,8 +165,8 @@ int sigar_loadavg_get(sigar_t *sigar,
 
 #define PROC_ELTS 16
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     struct tbl_procinfo procinfo[PROC_ELTS];
     int offset;
@@ -176,8 +176,6 @@ int sigar_proc_list_get(sigar_t *sigar,
         sigar->nproc = table(TBL_PROCINFO, 0, NULL, INT_MAX, 0);
     }
 
-    sigar_proc_list_create(proclist);
-
     for (offset=0; offset<sigar->nproc; offset+=PROC_ELTS) {
         int i;
         int elts = table(TBL_PROCINFO, offset, &procinfo,
diff --git a/src/os/solaris/solaris_sigar.c b/src/os/solaris/solaris_sigar.c
index f7a97d46..253ad88c 100644
--- a/src/os/solaris/solaris_sigar.c
+++ b/src/os/solaris/solaris_sigar.c
@@ -631,8 +631,8 @@ static int sigar_dlinfo_get(sigar_t *sigar, const char *func,
     return SIGAR_OK;
 }
 
-int sigar_proc_list_get(sigar_t *sigar,
-                        sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     return sigar_proc_list_procfs_get(sigar, proclist);
 }
diff --git a/src/os/win32/win32_sigar.c b/src/os/win32/win32_sigar.c
index aa9c33b7..8ceed133 100644
--- a/src/os/win32/win32_sigar.c
+++ b/src/os/win32/win32_sigar.c
@@ -904,8 +904,6 @@ static int sigar_proc_list_get_perf(sigar_t *sigar,
         }
     }
 
-    sigar_proc_list_create(proclist);
-
     for (i=0, inst = PdhFirstInstance(object);
          i<object->NumInstances;
          i++, inst = PdhNextInstance(inst))
@@ -928,8 +926,8 @@ static int sigar_proc_list_get_perf(sigar_t *sigar,
 #define sigar_EnumProcesses \
     sigar->psapi.enum_processes.func
 
-SIGAR_DECLARE(int) sigar_proc_list_get(sigar_t *sigar,
-                                       sigar_proc_list_t *proclist)
+int sigar_os_proc_list_get(sigar_t *sigar,
+                           sigar_proc_list_t *proclist)
 {
     DLLMOD_INIT(psapi, FALSE);
 
@@ -956,16 +954,14 @@ SIGAR_DECLARE(int) sigar_proc_list_get(sigar_t *sigar,
 
         pids = (DWORD *)sigar->perfbuf;
 
-        proclist->number = 0;
-        proclist->size = retval / sizeof(DWORD);
-        proclist->data =
-            malloc(sizeof(*(proclist->data)) * proclist->size);
+        size = retval / sizeof(DWORD);
 
-        for (i=0; i<proclist->size; i++) {
+        for (i=0; i<size; i++) {
             DWORD pid = pids[i];
             if (pid == 0) {
                 continue; /* dont include the system Idle process */
             }
+            SIGAR_PROC_LIST_GROW(proclist);
             proclist->data[proclist->number++] = pid;
         }
 
diff --git a/src/sigar.c b/src/sigar.c
index 98680382..ae9b643e 100644
--- a/src/sigar.c
+++ b/src/sigar.c
@@ -500,7 +500,7 @@ sigar_proc_cred_name_get(sigar_t *sigar, sigar_pid_t pid,
 
 #endif /* WIN32 */
 
-int sigar_proc_list_create(sigar_proc_list_t *proclist)
+static int sigar_proc_list_create(sigar_proc_list_t *proclist)
 {
     proclist->number = 0;
     proclist->size = SIGAR_PROC_LIST_MAX;
@@ -530,6 +530,13 @@ SIGAR_DECLARE(int) sigar_proc_list_destroy(sigar_t *sigar,
     return SIGAR_OK;
 }
 
+SIGAR_DECLARE(int) sigar_proc_list_get(sigar_t *sigar,
+                                       sigar_proc_list_t *proclist)
+{
+    sigar_proc_list_create(proclist);
+    return sigar_os_proc_list_get(sigar, proclist);
+}
+
 int sigar_proc_args_create(sigar_proc_args_t *procargs)
 {
     procargs->number = 0;
diff --git a/src/sigar_ptql.c b/src/sigar_ptql.c
index af45729f..fd2b66ae 100644
--- a/src/sigar_ptql.c
+++ b/src/sigar_ptql.c
@@ -1424,8 +1424,6 @@ SIGAR_DECLARE(int) sigar_ptql_query_find(sigar_t *sigar,
         return status;
     }
 
-    sigar_proc_list_create(proclist);
-
     for (i=0; i<pids.number; i++) {
         int query_status =
             sigar_ptql_query_match(sigar, query, pids.data[i]);
@@ -1444,7 +1442,7 @@ SIGAR_DECLARE(int) sigar_ptql_query_find(sigar_t *sigar,
     sigar_proc_list_destroy(sigar, &pids);
 
     if (status != SIGAR_OK) {
-        sigar_proc_list_create(proclist);
+        sigar_proc_list_destroy(sigar, proclist);
         return status;
     }
 
diff --git a/src/sigar_util.c b/src/sigar_util.c
index 81d0780e..1f1a393f 100644
--- a/src/sigar_util.c
+++ b/src/sigar_util.c
@@ -163,8 +163,6 @@ int sigar_proc_list_procfs_get(sigar_t *sigar,
         return errno;
     }
 
-    sigar_proc_list_create(proclist);
-
 #ifdef HAVE_READDIR_R
     while (readdir_r(dirp, &dbuf, &ent) == 0) {
         if (ent == NULL) {