export RK_PA3

hc

2024-02-19 151fecfb72a0d602dfe79790602ef64b4e241574

 kernel/tools/lib/api/fd/array.c
..
..
@@ -1,7 +1,6 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Copyright (C) 2014, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
3
- *
4
- * Released under the GPL v2. (and only v2, not any later version)
5
4
  */
6
5
 #include "array.h"
7
6
 #include <errno.h>
..
..
@@ -9,6 +8,7 @@
9
8
 #include <poll.h>
10
9
 #include <stdlib.h>
11
10
 #include <unistd.h>
11
+#include <string.h>
12
12
 
13
13
 void fdarray__init(struct fdarray *fda, int nr_autogrow)
14
14
 {
..
..
@@ -20,7 +20,7 @@
20
20
 
21
21
 int fdarray__grow(struct fdarray *fda, int nr)
22
22
 {
23
-	void *priv;
23
+	struct priv *priv;
24
24
 	int nr_alloc = fda->nr_alloc + nr;
25
25
 	size_t psize = sizeof(fda->priv[0]) * nr_alloc;
26
26
 	size_t size  = sizeof(struct pollfd) * nr_alloc;
..
..
@@ -34,6 +34,9 @@
34
34
 		free(entries);
35
35
 		return -ENOMEM;
36
36
 	}
37
+
38
+	memset(&entries[fda->nr_alloc], 0, sizeof(struct pollfd) * nr);
39
+	memset(&priv[fda->nr_alloc], 0, sizeof(fda->priv[0]) * nr);
37
40
 
38
41
 	fda->nr_alloc = nr_alloc;
39
42
 	fda->entries  = entries;
..
..
@@ -70,7 +73,7 @@
70
73
 	free(fda);
71
74
 }
72
75
 
73
-int fdarray__add(struct fdarray *fda, int fd, short revents)
76
+int fdarray__add(struct fdarray *fda, int fd, short revents, enum fdarray_flags flags)
74
77
 {
75
78
 	int pos = fda->nr;
76
79
 
..
..
@@ -80,6 +83,7 @@
80
83
 
81
84
 	fda->entries[fda->nr].fd     = fd;
82
85
 	fda->entries[fda->nr].events = revents;
86
+	fda->priv[fda->nr].flags = flags;
83
87
 	fda->nr++;
84
88
 	return pos;
85
89
 }
..
..
@@ -94,22 +98,22 @@
94
98
 		return 0;
95
99
 
96
100
 	for (fd = 0; fd < fda->nr; ++fd) {
101
+		if (!fda->entries[fd].events)
102
+			continue;
103
+
97
104
 		if (fda->entries[fd].revents & revents) {
98
105
 			if (entry_destructor)
99
106
 				entry_destructor(fda, fd, arg);
100
107
 
108
+			fda->entries[fd].revents = fda->entries[fd].events = 0;
101
109
 			continue;
102
110
 		}
103
111
 
104
-		if (fd != nr) {
105
-			fda->entries[nr] = fda->entries[fd];
106
-			fda->priv[nr]	 = fda->priv[fd];
107
-		}
108
-
109
-		++nr;
112
+		if (!(fda->priv[fd].flags & fdarray_flag__nonfilterable))
113
+			++nr;
110
114
 	}
111
115
 
112
-	return fda->nr = nr;
116
+	return nr;
113
117
 }
114
118
 
115
119
 int fdarray__poll(struct fdarray *fda, int timeout)