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[#897] Updated doc

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This commit is contained in:
Francis Dupont
2021-11-22 16:10:51 +01:00
parent ea6a766050
commit 9359241eb7
3 changed files with 48 additions and 12 deletions
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19
src/lib/dhcpsrv/mysql_lease_mgr.cc
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@@ -559,7 +559,8 @@ public:
// expiry time (expire). The relationship is given by:
//
// expire = cltt_ + valid_lft_
// Avoid overflow
// Avoid overflow with infinite valid lifetime by using
// expire = cltt_ when valid_lft_ = 0xffffffff
uint32_t valid_lft = lease_->valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {
valid_lft = 0;
@@ -766,7 +767,8 @@ public:
/// data.
Lease4Ptr getLeaseData() {
// Convert times received from the database to times for the lease
// structure
// structure. See the expire code of createBindForSend for
// the infinite valid lifetime special case.
time_t cltt = 0;
// Recover from overflow
uint32_t valid_lft = valid_lifetime_;
@@ -1003,7 +1005,8 @@ public:
// expiry time (expire). The relationship is given by:
//
// expire = cltt_ + valid_lft_
// Avoid overflow
// Avoid overflow with infinite valid lifetime by using
// expire = cltt_ when valid_lft_ = 0xffffffff
uint32_t valid_lft = lease_->valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {
valid_lft = 0;
@@ -1423,7 +1426,7 @@ public:
hostname, hwaddr,
prefix_len_));
time_t cltt = 0;
// Recover from overflow
// Recover from overflow (see expire code of createBindForSend).
uint32_t valid_lft = valid_lifetime_;
if (valid_lft == Lease::INFINITY_LFT) {
valid_lft = 0;
@@ -2846,6 +2849,8 @@ MySqlLeaseMgr::updateLease4(const Lease4Ptr& lease) {
bind.push_back(inbind[0]);
// See the expire code of createBindForSend for the
// infinite valid lifetime special case.
MYSQL_TIME expire;
uint32_t valid_lft = lease->current_valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {
@@ -2897,6 +2902,8 @@ MySqlLeaseMgr::updateLease6(const Lease6Ptr& lease) {
bind.push_back(inbind[0]);
// See the expire code of createBindForSend for the
// infinite valid lifetime special case.
MYSQL_TIME expire;
uint32_t valid_lft = lease->current_valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {
@@ -2959,6 +2966,8 @@ MySqlLeaseMgr::deleteLease(const Lease4Ptr& lease) {
inbind[0].buffer = reinterpret_cast<char*>(&addr4);
inbind[0].is_unsigned = MLM_TRUE;
// See the expire code of createBindForSend for the
// infinite valid lifetime special case.
MYSQL_TIME expire;
uint32_t valid_lft = lease->current_valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {
@@ -3009,6 +3018,8 @@ MySqlLeaseMgr::deleteLease(const Lease6Ptr& lease) {
inbind[0].buffer_length = addr6_length;
inbind[0].length = &addr6_length;
// See the expire code of createBindForSend for the
// infinite valid lifetime special case.
MYSQL_TIME expire;
uint32_t valid_lft = lease->current_valid_lft_;
if (valid_lft == Lease::INFINITY_LFT) {