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passt, tap: Daemonise once socket is ready without waiting for connection

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The existing behaviour is not really practical: an automated agent in
charge of starting both qemu and passt would need to fork itself to
start passt, because passt won't fork to background until qemu
connects, and the agent needs to unblock to start qemu.

Instead of waiting for a connection to daemonise, do it right away as
soon as a socket is available: that can be considered an initialised
state already.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2022-01-26 16:39:33 +01:00
parent b1f5688495
commit 34e6429235
4 changed files with 51 additions and 21 deletions

2
tap.h
View file

@ -6,5 +6,5 @@
void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto,
char *in, size_t len, uint32_t flow);
int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre);
void tap_handler(struct ctx *c, uint32_t events, struct timespec *now);
void tap_handler(struct ctx *c, int fd, uint32_t events, struct timespec *now);
void tap_sock_init(struct ctx *c);