Commit 46db6047 authored by Alberto Miranda's avatar Alberto Miranda ♨️
Browse files

First implementation of shutdown command 

When invoked, the daemon checks whether active tasks remain to be
processed and, if so, returns NORNS_ETASKSPENDING. If there are no
active tasks, but there are tracked namespaces that are not empty, the
daemon return NORNS_ENAMESPACENOTEMPTY. Otherwise, the daemon returns
NORNS_SUCCESS and shuts itself down.
parent 2f40ef61

include/norns/norns_error.h

+2 −0
Original line number Diff line number Diff line
@@ -63,11 +63,13 @@ extern "C" { 
/* errors about namespaces */

#define NORNS_ENAMESPACEEXISTS   -30

#define NORNS_ENOSUCHNAMESPACE   -31

#define NORNS_ENAMESPACENOTEMPTY -32



/* errors about tasks */

#define NORNS_ETASKEXISTS        -40

#define NORNS_ENOSUCHTASK        -41

#define NORNS_ETOOMANYTASKS      -42

#define NORNS_ETASKSPENDING      -43



/* task status */

#define NORNS_EPENDING          -100

lib/errors.c

+2 −0
Original line number Diff line number Diff line
@@ -53,11 +53,13 @@ const char* const norns_errlist[NORNS_ERRMAX + 1] = { 
    /* backend errors */

    [ERR_REMAP(NORNS_ENAMESPACEEXISTS)] = "Namespace already exists",

    [ERR_REMAP(NORNS_ENOSUCHNAMESPACE)] = "Namespace does not exist",

    [ERR_REMAP(NORNS_ENAMESPACENOTEMPTY)] = "Namespace is not empty",

    

    /* task errors */

    [ERR_REMAP(NORNS_ETASKEXISTS)] = "Task already exists",

    [ERR_REMAP(NORNS_ENOSUCHTASK)] = "Task does not exist",

    [ERR_REMAP(NORNS_ETOOMANYTASKS)] = "Too many pending tasks",

    [ERR_REMAP(NORNS_ETASKSPENDING)] = "There are still pending tasks",



    /* misc errors */

    [ERR_REMAP(NORNS_ENOTSUPPORTED)] = "Not supported",

src/backends/backend-base.hpp

+1 −0
Original line number Diff line number Diff line
@@ -60,6 +60,7 @@ public: 
    virtual ~backend() {};



    virtual bool is_tracked() const = 0;

    virtual bool is_empty() const = 0;

    virtual bfs::path mount() const = 0;

    virtual uint32_t quota() const = 0;

src/backends/lustre-fs.cpp

+5 −0
Original line number Diff line number Diff line
@@ -43,6 +43,11 @@ lustre::is_tracked() const { 
    return m_track;

}



bool

lustre::is_empty() const {

    return false;

}



bfs::path lustre::mount() const {

    return m_mount;

}

src/backends/lustre-fs.hpp

+1 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ public: 
    lustre(bool track, const bfs::path& mount, uint32_t quota);



    bool is_tracked() const override final;

    bool is_empty() const override final;

    bfs::path mount() const override final;

    uint32_t quota() const override final;