git: f53120073b32 - main - Revert "bsnmpclient(3): make it thread-safe"
Edward Tomasz Napierala
trasz at FreeBSD.org
Tue Dec 29 19:59:17 UTC 2020
The branch main has been updated by trasz:
URL: https://cgit.FreeBSD.org/src/commit/?id=f53120073b321c1d2e42641ca22414992ddbe0ff
commit f53120073b321c1d2e42641ca22414992ddbe0ff
Author: Edward Tomasz Napierala <trasz at FreeBSD.org>
AuthorDate: 2020-12-29 19:55:05 +0000
Commit: Edward Tomasz Napierala <trasz at FreeBSD.org>
CommitDate: 2020-12-29 19:55:05 +0000
Revert "bsnmpclient(3): make it thread-safe"
This reverts commit 89e3d5671ba13dceca272d5b159c9bd805f3f504.
As pointed out, there are several problems with that commit:
1. The new semantics, while useful for clients where multiple
threads use separate contexts, breaks clients which correctly
share a single one
2. Change in semantics would require a library version bump
3. It doesn't build with GCC
---
contrib/bsnmp/lib/asn1.c | 2 +-
contrib/bsnmp/lib/snmpclient.c | 4 ++--
contrib/bsnmp/lib/snmpclient.h | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/contrib/bsnmp/lib/asn1.c b/contrib/bsnmp/lib/asn1.c
index a03dac70c529..f1f9267c0226 100644
--- a/contrib/bsnmp/lib/asn1.c
+++ b/contrib/bsnmp/lib/asn1.c
@@ -1019,7 +1019,7 @@ asn_oid2str_r(const struct asn_oid *oid, char *buf)
char *
asn_oid2str(const struct asn_oid *oid)
{
- __thread static char str[ASN_OIDSTRLEN];
+ static char str[ASN_OIDSTRLEN];
return (asn_oid2str_r(oid, str));
}
diff --git a/contrib/bsnmp/lib/snmpclient.c b/contrib/bsnmp/lib/snmpclient.c
index e49105918416..c22d8e125a14 100644
--- a/contrib/bsnmp/lib/snmpclient.c
+++ b/contrib/bsnmp/lib/snmpclient.c
@@ -71,7 +71,7 @@
#define DEBUG_PARSE 0
/* global context */
-__thread struct snmp_client snmp_client;
+struct snmp_client snmp_client;
/* List of all outstanding requests */
struct sent_pdu {
@@ -86,7 +86,7 @@ struct sent_pdu {
};
LIST_HEAD(sent_pdu_list, sent_pdu);
-__thread static struct sent_pdu_list sent_pdus;
+static struct sent_pdu_list sent_pdus;
/*
* Prototype table entry. All C-structure produced by the table function must
diff --git a/contrib/bsnmp/lib/snmpclient.h b/contrib/bsnmp/lib/snmpclient.h
index 1bc3780de038..a19bdb2ea653 100644
--- a/contrib/bsnmp/lib/snmpclient.h
+++ b/contrib/bsnmp/lib/snmpclient.h
@@ -114,7 +114,7 @@ struct snmp_client {
};
/* the global context */
-extern __thread struct snmp_client snmp_client;
+extern struct snmp_client snmp_client;
/* initizialies a snmp_client structure */
void snmp_client_init(struct snmp_client *);
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