tequilaOS/platform_system_vold
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vold: support "volume list [broadcast]" command

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Sometimes when an sdcard is already mounted,
some info like uuid and label are not re-broadcast to new listeners.
The extra argument to list allows late listeners to catch up by asking
volume list to broadcast that info again.

Bug: 16253597
Bug: 16306775
Change-Id: Ie7d0c1132c22d307a5b2a0e50075a3716138d00b
Signed-off-by: Benson Huang <benson.huang@mediatek.com>
(cherry picked from commit 85f4700f44170b772697e627b3075dcb9137e1b7)
This commit is contained in:
JP Abgrall 2014-07-24 18:02:16 -07:00 committed by Todd Poynor
parent e068a491c2
commit 40b64a6841
3 changed files with 19 additions and 3 deletions
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3
CommandListener.cpp
View file

@ -131,7 +131,8 @@ int CommandListener::VolumeCmd::runCommand(SocketClient *cli,
int rc = 0;
if (!strcmp(argv[1], "list")) {
return vm->listVolumes(cli);
bool broadcast = argc >= 3 && !strcmp(argv[2], "broadcast");
return vm->listVolumes(cli, broadcast);
} else if (!strcmp(argv[1], "debug")) {
if (argc != 3 || (argc == 3 && (strcmp(argv[2], "off") && strcmp(argv[2], "on")))) {
cli->sendMsg(ResponseCode::CommandSyntaxError, "Usage: volume debug <off/on>", false);

17
VolumeManager.cpp
View file

@ -260,8 +260,9 @@ void VolumeManager::handleBlockEvent(NetlinkEvent *evt) {
}
}
int VolumeManager::listVolumes(SocketClient *cli) {
int VolumeManager::listVolumes(SocketClient *cli, bool broadcast) {
VolumeCollection::iterator i;
char msg[256];
for (i = mVolumes->begin(); i != mVolumes->end(); ++i) {
char *buffer;
@ -270,6 +271,20 @@ int VolumeManager::listVolumes(SocketClient *cli) {
(*i)->getState());
cli->sendMsg(ResponseCode::VolumeListResult, buffer, false);
free(buffer);
if (broadcast) {
if((*i)->getUuid()) {
snprintf(msg, sizeof(msg), "%s %s \"%s\"", (*i)->getLabel(),
(*i)->getFuseMountpoint(), (*i)->getUuid());
mBroadcaster->sendBroadcast(ResponseCode::VolumeUuidChange,
msg, false);
}
if((*i)->getUserLabel()) {
snprintf(msg, sizeof(msg), "%s %s \"%s\"", (*i)->getLabel(),
(*i)->getFuseMountpoint(), (*i)->getUserLabel());
mBroadcaster->sendBroadcast(ResponseCode::VolumeUserLabelChange,
msg, false);
}
}
}
cli->sendMsg(ResponseCode::CommandOkay, "Volumes listed.", false);
return 0;

2
VolumeManager.h
View file

@ -77,7 +77,7 @@ public:
int addVolume(Volume *v);
int listVolumes(SocketClient *cli);
int listVolumes(SocketClient *cli, bool broadcast);
int mountVolume(const char *label);
int unmountVolume(const char *label, bool force, bool revert);
int shareVolume(const char *label, const char *method);